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Estimation

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Estimation

  1. 1. ESTIMATIONESTIMATION Estimation is the scientific way ofEstimation is the scientific way of working out the approximate cost ofworking out the approximate cost of an engineering project beforean engineering project before execution of the workexecution of the work..  It is totally different from calculation of theIt is totally different from calculation of the exact cost after completion of the project.exact cost after completion of the project.  Estimation requires a thorough KnowledgeEstimation requires a thorough Knowledge of the construction procedures and cost ofof the construction procedures and cost of materials & labour in addition to the skill ,materials & labour in addition to the skill , experience, foresight and good judgment.experience, foresight and good judgment.
  2. 2. ESTIMATEESTIMATE An estimate of the cost of a constructionAn estimate of the cost of a construction job is the probable cost of that job asjob is the probable cost of that job as computed from plans and specificationscomputed from plans and specifications..  For a good estimate the, actual cost of theFor a good estimate the, actual cost of the proposed work after completion should notproposed work after completion should not differ by more then 5 to 10 % from itsdiffer by more then 5 to 10 % from its approximate cost estimate, provided thereapproximate cost estimate, provided there are no unusual, unforeseen circumstances.are no unusual, unforeseen circumstances.
  3. 3. NEED FOR ESTIMATENEED FOR ESTIMATE 1.1. It help to work out the approximate cost of theIt help to work out the approximate cost of the project in order to decide its feasibility withproject in order to decide its feasibility with respect to the cost and to ensure the financialrespect to the cost and to ensure the financial resources, if the proposal is approved.resources, if the proposal is approved. 2.2. Requirements of controlled materials, such asRequirements of controlled materials, such as cement and steel can be estimated for makingcement and steel can be estimated for making applications to the controlling authorities.applications to the controlling authorities. 3.3. It is used for framing the tenders for the worksIt is used for framing the tenders for the works and to check contractor’s work during and afterand to check contractor’s work during and after the its execution for the purpose of makingthe its execution for the purpose of making payments to the contractor.payments to the contractor. 4.4. From quantities of different items of workFrom quantities of different items of work calculated in detailed estimation, resources arecalculated in detailed estimation, resources are allocated to different activities of the project andallocated to different activities of the project and ultimately their durations and whole planning andultimately their durations and whole planning and scheduling of the project is carried out.scheduling of the project is carried out.
  4. 4. SITE CONDITIONS AFFECTING THE OVERALL COSTSITE CONDITIONS AFFECTING THE OVERALL COST 1 = Each type of work requires a different1 = Each type of work requires a different method of construction. Construction may be ofmethod of construction. Construction may be of an ordinary house or office and it may also bean ordinary house or office and it may also be of a Dam, Tunnel, Multistory building, Airport,of a Dam, Tunnel, Multistory building, Airport, Bridge, or a Road, already in operation. Each ofBridge, or a Road, already in operation. Each of these works requires totally differentthese works requires totally different construction techniques, type of machinery,construction techniques, type of machinery, and formwork.and formwork. 2 = Quality of labour and labour output varies in2 = Quality of labour and labour output varies in different localities.different localities. 3 = Weather conditions greatly affect the output3 = Weather conditions greatly affect the output and, hence, the overall costand, hence, the overall cost..
  5. 5. SITE CONDITIONS AFFECTING THE OVERALL COST (-ctd-)SITE CONDITIONS AFFECTING THE OVERALL COST (-ctd-) 4.4. Ground conditions vary and changeGround conditions vary and change the method of construction. Forthe method of construction. For example, excavation may be dry, wet,example, excavation may be dry, wet, hard, soft, shallow or deep requiringhard, soft, shallow or deep requiring different efforts.different efforts. 5.5. The work may be in open ground suchThe work may be in open ground such as fields or it may be in congestedas fields or it may be in congested areas such as near or on the publicareas such as near or on the public roads, necessitating extensiveroads, necessitating extensive watching, lightening, and controllingwatching, lightening, and controlling efforts, etc.efforts, etc.
  6. 6. SITE CONDITIONS AFFECTING THE OVERALL COST (-ctd-)SITE CONDITIONS AFFECTING THE OVERALL COST (-ctd-) 6.6. The source of availability of aThe source of availability of a sufficient supply of materials of goodsufficient supply of materials of good quality is also a factor.quality is also a factor. 7.7. The availability of constructionThe availability of construction machinery also affects the method ofmachinery also affects the method of construction.construction. 8.8. Access to the site must beAccess to the site must be reasonable. If the access is poor,reasonable. If the access is poor, temporary roads may be constructed.temporary roads may be constructed.
  7. 7. ESSENTIAL QUALITIES OF A GOOD ESTIMATORESSENTIAL QUALITIES OF A GOOD ESTIMATOR • In preparing an estimate, the Estimator mustIn preparing an estimate, the Estimator must have good knowledge regarding the importanthave good knowledge regarding the important rules of quantity surveying.rules of quantity surveying. • He must thoroughly understand the drawingsHe must thoroughly understand the drawings of the structure, for which he is going toof the structure, for which he is going to prepare an estimate.prepare an estimate. • He must also be clearly informed about theHe must also be clearly informed about the specifications showing nature and classes ofspecifications showing nature and classes of works and the materials to be used becauseworks and the materials to be used because the rates at which various types of works canthe rates at which various types of works can be executed depend upon its specifications.be executed depend upon its specifications.
  8. 8. ESSENTIAL QUALITIES OF A GOOD ESTIMATOR (-ctd-)ESSENTIAL QUALITIES OF A GOOD ESTIMATOR (-ctd-) A good estimator of construction costs should possess the following capabilities, also:- 1 = A knowledge of the details of construction work. 2 = Experience in construction work. 3 = Having information regarding the materials required, machinery needed, overhead problems, and costs of all kinds. 4 = Good judgment with regard to different localities, different jobs and different workmen. 5 = Selection of a good method for preparing an estimate. 6 = Ability to be careful, thorough, hard working and accurate. 7 = Ability to collect, classify and evaluate data relating to estimation. 8 = Ability to visualize all the steps during the process of construction.
  9. 9. ESSENTIAL QUALITIES OF A GOOD ESTIMATOR (-ctd-)ESSENTIAL QUALITIES OF A GOOD ESTIMATOR (-ctd-)  Before preparing the estimate, the estimator should visitBefore preparing the estimate, the estimator should visit thethe site and make a study of conditions, there. Forsite and make a study of conditions, there. For example, if the construction of a large building isexample, if the construction of a large building is planned, the estimator or his representative should visitplanned, the estimator or his representative should visit the site and:the site and:  Note the location of the proposed building.Note the location of the proposed building.  Get all data available regarding the soil.Get all data available regarding the soil.  Make a sketch of the site showing all important details.Make a sketch of the site showing all important details.  Obtain information concerning light, power, and water.Obtain information concerning light, power, and water.  Secure information concerning banking facilities.Secure information concerning banking facilities.  Note conditions of streets leading to railway yards andNote conditions of streets leading to railway yards and to material dealers, andto material dealers, and  Investigate general efficiency of local workman.Investigate general efficiency of local workman.
  10. 10. TYPES OF ESTIMATESTYPES OF ESTIMATES  There are two main types of estimates:-There are two main types of estimates:- 1 =1 = Rough cost estimate.Rough cost estimate. 2 =2 = Detailed estimate.Detailed estimate.  Depending upon the purpose of estimate,Depending upon the purpose of estimate, some types of detailed estimate are assome types of detailed estimate are as follows:-follows:- a)a) Contractor's estimateContractor's estimate b)b) Engineer's estimateEngineer's estimate c)c) Progress estimateProgress estimate
  11. 11. I = Rough cost estimateI = Rough cost estimate • Estimation of cost before construction fromEstimation of cost before construction from plans or architectural drawings of theplans or architectural drawings of the project scheme, when even detailed orproject scheme, when even detailed or structural design has not been carried out, isstructural design has not been carried out, is called Rough cost estimate.called Rough cost estimate. • These estimates are used for obtainingThese estimates are used for obtaining Administrative Approval from theAdministrative Approval from the concerning Authorities.concerning Authorities. • Sometimes, on the basis of rough costSometimes, on the basis of rough cost estimates, a proposal may be droppedestimates, a proposal may be dropped altogether.altogether.
  12. 12. Rough cost estimate (-ctd-)Rough cost estimate (-ctd-) • Unit costUnit cost is worked out for projects similar to the projectis worked out for projects similar to the project under consideration carried out recently in nearly the sameunder consideration carried out recently in nearly the same site conditions.site conditions. • Unit cost means cost of execution of a unit quantity of theUnit cost means cost of execution of a unit quantity of the work.work.
  13. 13. Rough cost estimate (-ctd-)Rough cost estimate (-ctd-) • To find rough cost of any project, this workedTo find rough cost of any project, this worked average unit cost is multiplied with total quantityaverage unit cost is multiplied with total quantity of the present work in the same units.of the present work in the same units. • For example, in case of a building, plinth area (sq.For example, in case of a building, plinth area (sq. ft.) of the proposed building is worked out, whichft.) of the proposed building is worked out, which is then multiplied by the cost per unit area (Rs.is then multiplied by the cost per unit area (Rs. /ft/ft22 ) of similar building actually constructed in the) of similar building actually constructed in the near past in nearly the same site conditions, tonear past in nearly the same site conditions, to find out the rough cost estimate of the building.find out the rough cost estimate of the building. • This cost is sometimes adjusted by the averageThis cost is sometimes adjusted by the average percentage rise in the cost of materials andpercentage rise in the cost of materials and wages.wages.
  14. 14. Rough cost estimateRough cost estimate  The rough cost estimate may be prepared on theThe rough cost estimate may be prepared on the following basis for different types of projects:following basis for different types of projects: 1.1. Cost per square foot of covered area (plinth area) isCost per square foot of covered area (plinth area) is the mostthe most commonly adopted criterion for preparingcommonly adopted criterion for preparing rough cost estimate for most of the residentialrough cost estimate for most of the residential buildings.buildings. 2.2. For public buildings, cost. Per person (cost perFor public buildings, cost. Per person (cost per capita) iscapita) is used. For example,used. For example, Students hostel———————-—cost per studentStudents hostel———————-—cost per student Hospitals————————————Cost per bedHospitals————————————Cost per bed Hotel—————————————Cost per GuestHotel—————————————Cost per Guest
  15. 15. Rough cost estimate (-ctd-)Rough cost estimate (-ctd-) 3.3. Cost per cubic footCost per cubic foot is particularly suitable foris particularly suitable for commercial offices, shopping centers, andcommercial offices, shopping centers, and factory buildingsfactory buildings, etc., etc. 4.4. ForFor water tank/reservoirwater tank/reservoir, cost may be worked out, cost may be worked out on the basis of capacity inon the basis of capacity in gallons of water storedgallons of water stored.. 5.5. For roads and railwaysFor roads and railways, cost may be found out, cost may be found out per mile/kilometerper mile/kilometer of length.of length. 6.6. For streetsFor streets, cost may be, cost may be per hundred feet/metersper hundred feet/meters ofof length.length. 7.7. In case ofIn case of bridgesbridges,, cost per foot/metercost per foot/meter of clear spanof clear span may be calculated.may be calculated.
  16. 16. EXAMPLEEXAMPLE Calculate the total rough costCalculate the total rough cost estimate and cost per Flat for aestimate and cost per Flat for a multi-storey (4-storeyed) blockmulti-storey (4-storeyed) block consisting of 40 residential flats.consisting of 40 residential flats. Other details are given in the table:Other details are given in the table:
  17. 17. Sr. No PORTION AREA (sq. ft) UNIT COST (Rs./sq.ft.) Building Works Sanitory Works Electric Services Sui Gas Services 1 Main Flat Area (i) Ground Floor (ii) Ist Floor (iii) 2nd Floor (iv) 3rd Floor 20030 20030 20030 20030 1800 1500 1650 1800 130 130 130 130 100 100 100 100 60 60 60 60 2 Park Area at G. Floor 75,800 800 -------- 40 ------- 3 Circulation Area in all 4 floors 1936 1050 -------- 70 ------- 4 Covered Shopping Area at G. Floor 920 950 -------- 70 ------- 5 Attached Servant Quarters 2112 1150 55 70 40
  18. 18. Add the following costs as Lump Sum :Add the following costs as Lump Sum : 1-1- Road and Walkways = 15,00,000/-Road and Walkways = 15,00,000/- 2-2- Land Scapping = 12,00,000/-Land Scapping = 12,00,000/- 3-3- External Sewerage = 7,00,000/-External Sewerage = 7,00,000/- 4-4- External Water Supply, Overhead andExternal Water Supply, Overhead and Underground Water Tanks with pumpingUnderground Water Tanks with pumping machinery for each set of Flats = 19,00,000/-machinery for each set of Flats = 19,00,000/- 5-5- External Electricity = 3,00,000/-External Electricity = 3,00,000/- 6-6- Boundary Wall = 6,00,000/-Boundary Wall = 6,00,000/- 7-7- Miscellaneous unforeseen itemsMiscellaneous unforeseen items = 8,00,000/-= 8,00,000/- 8-8- Add 6 % development charges.Add 6 % development charges. 9-9- Add 3 % consultancy chargesAdd 3 % consultancy charges
  19. 19. EXAMPLE 2EXAMPLE 2  Prepare a Rough-cost Estimate of a residential buildingPrepare a Rough-cost Estimate of a residential building project with a total plinth area of all building of 1500project with a total plinth area of all building of 1500 sq.m. given that:sq.m. given that:  linth Area Rate = Rs: 950.00 / sq. ft.linth Area Rate = Rs: 950.00 / sq. ft.  Extra for special architectural treatment = 1.5 % of theExtra for special architectural treatment = 1.5 % of the buiding cost.buiding cost.  Extra for water supply and sanitary installations = 5 %Extra for water supply and sanitary installations = 5 % of the building cost.of the building cost.  Extra for internal installations = 14 % of the buidingExtra for internal installations = 14 % of the buiding costcost  Extra for Electric & Sui gas services = 16 % of buidingExtra for Electric & Sui gas services = 16 % of buiding costcost  Contigencies 3 % overallContigencies 3 % overall  Supervision charges = 8 % overallSupervision charges = 8 % overall  Design charges = 2 % overallDesign charges = 2 % overall
  20. 20. EXAMPLE 3EXAMPLE 3  Prepare a Rough-cost Estimate based on unit costsPrepare a Rough-cost Estimate based on unit costs of per unit plinth area basis of a four storeyedof per unit plinth area basis of a four storeyed office building having a carpet area of 2000 sq.m.office building having a carpet area of 2000 sq.m. for obtaining the administrative approval of thefor obtaining the administrative approval of the Government. It may be assumed that 30 % of theGovernment. It may be assumed that 30 % of the built up area will be taken by the corridors,built up area will be taken by the corridors, verandas, lavatories, staircase, etc. and 10 % ofverandas, lavatories, staircase, etc. and 10 % of built up area will be occupied by walls. Thebuilt up area will be occupied by walls. The following data is given:following data is given:  Plinth Area Rate = Rs: 1100.00 / sq. ft.Plinth Area Rate = Rs: 1100.00 / sq. ft.  Extra for special architectural treatment = 0.5 %Extra for special architectural treatment = 0.5 % of the buiding cost.of the buiding cost.  Extra for water supply and sanitary installations =Extra for water supply and sanitary installations = 6 % of the building cost.6 % of the building cost.
  21. 21. Example 3Example 3  Extra for internal installations = 14 % of theExtra for internal installations = 14 % of the buiding costbuiding cost  Extra for electric services = 12.5 % of buidingExtra for electric services = 12.5 % of buiding costcost  Extra for sui gas services = 6 % of buiding costExtra for sui gas services = 6 % of buiding cost  Extra due to deep foundations at site = 1.0 % ofExtra due to deep foundations at site = 1.0 % of buiding costbuiding cost  Contigencies = 2.5 % overallContigencies = 2.5 % overall  Supervision charges = 8 % overallSupervision charges = 8 % overall  Design charges = 2.5 % overallDesign charges = 2.5 % overall
  22. 22. Example 4Example 4  Prepare a Rough-cost Estimate for obtaining thePrepare a Rough-cost Estimate for obtaining the administrative approval of the Government for aadministrative approval of the Government for a hospital project to serve both indoor and outdoorhospital project to serve both indoor and outdoor patiesnts in an important rural area. The hospital willpatiesnts in an important rural area. The hospital will consist of the following:consist of the following:  Main administrative office with dispensingMain administrative office with dispensing operations, etc.operations, etc.  Two general wards, each of 20 general beds.Two general wards, each of 20 general beds.  Superintendent Doctor’s Residence.Superintendent Doctor’s Residence.  Two Assistant Doctor’s Residences.Two Assistant Doctor’s Residences.  Eight single Nurses Quarters.Eight single Nurses Quarters.  Four Compounder’s Quarters.Four Compounder’s Quarters.  Twelve lower staff’s Quarters.Twelve lower staff’s Quarters.
  23. 23. DETAILED ESTIMATEDETAILED ESTIMATE • Detailed estimates are prepared by carefullyDetailed estimates are prepared by carefully and separately calculating in detail the costs ofand separately calculating in detail the costs of various items of the work that constitute thevarious items of the work that constitute the whole project from the detailed workingwhole project from the detailed working drawings after the design has been finalizeddrawings after the design has been finalized.. • The mistakes, if any, in the rough cost estimate areThe mistakes, if any, in the rough cost estimate are eliminated in the detailed estimate.eliminated in the detailed estimate. • Detailed estimates are submitted to the competentDetailed estimates are submitted to the competent authorities for obtaining technical sanction.authorities for obtaining technical sanction.
  24. 24. DETAILED ESTIMATEDETAILED ESTIMATE  The whole project is sub-divided into differentThe whole project is sub-divided into different items of work or activities. The quantity for eachitems of work or activities. The quantity for each item is then calculated separately from theitem is then calculated separately from the drawings as accurately as possible. The proceduredrawings as accurately as possible. The procedure is known asis known as ""taking out of quantitiestaking out of quantities".".  The quantities for each item may be estimated andThe quantities for each item may be estimated and shown in the pattern which is calledshown in the pattern which is called ""Bill ofBill of quantities."quantities."  The unit, in which each item of the wok is to beThe unit, in which each item of the wok is to be calculated, should be according to the prevailingcalculated, should be according to the prevailing practice as followed in various departments of thepractice as followed in various departments of the country.country.
  25. 25. BILL OF QUANTITIES Sr. NoSr. No DescriptionDescription of itemof item NoNo MeasurementsMeasurements QuantityQuantity TotalTotal QuantityQuantity RemarksRemarks LengthLength BreadthBreadth HeightHeight
  26. 26. PRICED BILL OF QUANTITIES Sr. No.Sr. No. Description of ItemDescription of Item UnitUnit QuantityQuantity RateRate CostCost RemarksRemarks
  27. 27. DETAILED ESTIMATEDETAILED ESTIMATE  Each item of the work is then multiplied by itsEach item of the work is then multiplied by its estimated current rate calculated by a fixed procedureestimated current rate calculated by a fixed procedure to find outto find out cost of the itemcost of the item..  At the end, a total of all items of the work are made toAt the end, a total of all items of the work are made to get theget the total estimated costtotal estimated cost..  The rates are usually as perThe rates are usually as per Schedule of RatesSchedule of Rates for thefor the locality plus alocality plus a premiumpremium to allow for rise in labor andto allow for rise in labor and material rates over and above the schedule of rates.material rates over and above the schedule of rates.  A percentage, usually 5% is also provided on the totalA percentage, usually 5% is also provided on the total estimated cost for the work to allow for the possibleestimated cost for the work to allow for the possible contingenciescontingencies due to unforeseen items or expendituredue to unforeseen items or expenditure or other causes, besides 2%or other causes, besides 2% establishment chargesestablishment charges..
  28. 28. DETAILED ESTIMATEDETAILED ESTIMATE  Besides drawings and details of measurements andBesides drawings and details of measurements and calculation of quantities (Bill of Quantities), the followingcalculation of quantities (Bill of Quantities), the following documentsdocuments are also usually submitted with the detailedare also usually submitted with the detailed estimate for obtaining Technical Sanction:estimate for obtaining Technical Sanction: 1.1. AA reportreport explaining History, necessity, scope and mainexplaining History, necessity, scope and main features of the project, its design, and estimate, etc.features of the project, its design, and estimate, etc. 2.2. SpecificationsSpecifications lying down the nature and class of worklying down the nature and class of work and material to be used in various parts of the work.and material to be used in various parts of the work. 3.3. TheThe abstract of costabstract of cost (priced Bill of Quantities) showing(priced Bill of Quantities) showing the total quantities under each sub-head, rate per unit ofthe total quantities under each sub-head, rate per unit of measurement, and cost.measurement, and cost. 4.4. Calculation sheetsCalculation sheets showing calculations for importantshowing calculations for important parts of the structure. In fact, in estimating the art andparts of the structure. In fact, in estimating the art and skill lies only in the computation of details without anyskill lies only in the computation of details without any omissions, of all parts of the building or work.omissions, of all parts of the building or work.
  29. 29. CLASSIFICATION DEPENDING UPONCLASSIFICATION DEPENDING UPON PURPOSE OF DETAILED ESTIMATEPURPOSE OF DETAILED ESTIMATE 1- CONTRACTOR ESTIMATE1- CONTRACTOR ESTIMATE It is made by the contractor for determiningIt is made by the contractor for determining the price or prices to be bid.the price or prices to be bid. It is usually a carefully prepared detailedIt is usually a carefully prepared detailed estimateestimate.. 2- ENGINEER’S ESTIMATE2- ENGINEER’S ESTIMATE This type of estimate is made by the EngineerThis type of estimate is made by the Engineer (Consultant) usually for the purposes of(Consultant) usually for the purposes of financing the work and for checking bids andfinancing the work and for checking bids and running bills submitted by contractors.running bills submitted by contractors.
  30. 30. 3- PROGRESS ESTIMATES3- PROGRESS ESTIMATES • These are made by theThese are made by the EngineerEngineer atat regular intervals for the completed partsregular intervals for the completed parts of the project during the progress of theof the project during the progress of the work for determining the amounts ofwork for determining the amounts of partial payments to be made to thepartial payments to be made to the contractor.contractor. • On large contracts, such estimates areOn large contracts, such estimates are commonly made each month and, hence,commonly made each month and, hence, are frequently calledare frequently called monthly estimatesmonthly estimates..
  31. 31. UNFORESEEN ITEMS IN DETAILED ESTIMATEUNFORESEEN ITEMS IN DETAILED ESTIMATE • While preparing a detailed estimate, one had toWhile preparing a detailed estimate, one had to be very careful to see that all items of the workbe very careful to see that all items of the work are incorporated.are incorporated. • It is likely that a few Items, thoughIt is likely that a few Items, though unimportant in nature, might have beenunimportant in nature, might have been overlooked and which may result in raising theoverlooked and which may result in raising the estimate of the project.estimate of the project. • There may be also certain unforeseenThere may be also certain unforeseen circumstances affecting the project.circumstances affecting the project. • Hence, a certain allowance usuallyHence, a certain allowance usually 5 to 10%5 to 10% ofof the total cost, is made in the estimation whichthe total cost, is made in the estimation which will take care of all these items that arewill take care of all these items that are unforeseen or are overlooked and are known asunforeseen or are overlooked and are known as "Contingencies"."Contingencies".
  32. 32. METHODS OF DETAILED ESTIMATEMETHODS OF DETAILED ESTIMATE  The dimensions, length, breadth and height or depthThe dimensions, length, breadth and height or depth are to be taken out from the working drawings (plan,are to be taken out from the working drawings (plan, elevation and section).elevation and section).  Junctions of walls, cornersJunctions of walls, corners and theand the meeting pointsmeeting points ofof walls require special attention.walls require special attention.  For symmetrical footings, which is the usual case,For symmetrical footings, which is the usual case, earthwork in excavation in foundations, foundationearthwork in excavation in foundations, foundation concrete, brickwork in foundation and plinth, andconcrete, brickwork in foundation and plinth, and brickwork in superstructure may be estimated by eitherbrickwork in superstructure may be estimated by either of theof the two methodstwo methods:: (1)(1) SEPARATE OR INDIVIDUAL WALL METHODSEPARATE OR INDIVIDUAL WALL METHOD (2) CENTER LINE METHOD(2) CENTER LINE METHOD
  33. 33. SEPARATE OR INDIVIDUAL WALLS METHODSEPARATE OR INDIVIDUAL WALLS METHOD • The walls running in one direction are termed asThe walls running in one direction are termed as ""long wallslong walls”” and the walls running in theand the walls running in the transverse direction, astransverse direction, as ""Short waLlsShort waLls",", withoutwithout keeping in mind which wall is lesser in lengthkeeping in mind which wall is lesser in length and which wall is greater in length.and which wall is greater in length. • Lengths of long walls are measured or foundLengths of long walls are measured or found ""Out-to outOut-to out"" and those of short walls as "and those of short walls as "In-In- to-in".to-in". • DifferentDifferent quantitiesquantities are calculated by multiplyingare calculated by multiplying the length by the breadth and the height of thethe length by the breadth and the height of the wall.wall. • The same rule applies to the excavation inThe same rule applies to the excavation in foundation, to concrete bed in foundation,foundation, to concrete bed in foundation, D.P.C., masonry in foundation and superD.P.C., masonry in foundation and super structure etc.structure etc.
  34. 34. SEPARATE OR INDIVIDUAL WALLS METHODSEPARATE OR INDIVIDUAL WALLS METHOD • For symmetrical footing on either side, theFor symmetrical footing on either side, the center line remains same for super structure,center line remains same for super structure, foundation and plinth. So, the simple method isfoundation and plinth. So, the simple method is to find out the centre-to-centre lengths of longto find out the centre-to-centre lengths of long walls and short walls from the plan.walls and short walls from the plan. • Long wall length out-to-outLong wall length out-to-out = Center to center length + half breadth on= Center to center length + half breadth on one Side + half breadth on other side.one Side + half breadth on other side. = Center to center length + one breadth= Center to center length + one breadth • Short wall length in-to-inShort wall length in-to-in = Center to Center= Center to Center length - one breadth.length - one breadth.
  35. 35. SEPARATE OR INDIVIDUAL WALLS METHODSEPARATE OR INDIVIDUAL WALLS METHOD This method can also be worked out in a quicker way., as follows:This method can also be worked out in a quicker way., as follows:  For long wallsFor long walls • First of all, find the length of theFirst of all, find the length of the foundation trenchfoundation trench of the longof the long wallwall “out-to-out”“out-to-out” in the same manner as explained above.in the same manner as explained above. • The length of theThe length of the foundation concretefoundation concrete is the same.is the same. • For the length of theFor the length of the first footingfirst footing or first step of the brick wall,or first step of the brick wall, subtract two offsets (2x6"=12") in foundation concrete from thesubtract two offsets (2x6"=12") in foundation concrete from the length of the trench or concrete.length of the trench or concrete. • For theFor the second footingsecond footing subtract from the length of the 1st footingsubtract from the length of the 1st footing two offsets (2x2.25"= 4.5"), fortwo offsets (2x2.25"= 4.5"), for 3rd footing3rd footing subtract from thesubtract from the length of the 2nd footing 2 offsets (4.5") and in this way deallength of the 2nd footing 2 offsets (4.5") and in this way deal with the long walls up to the super-structure.with the long walls up to the super-structure.  For short wallsFor short walls Follow he same method but instead of subtracting add twoFollow he same method but instead of subtracting add two offsets to get the corresponding lengthsoffsets to get the corresponding lengths in-to-inin-to-in..
  36. 36. Foundation Trench 1 Breadth 2 1 Breadth 2
  37. 37. CENTRE LINE METHODCENTRE LINE METHOD  In this method, total length of centre lines of walls,In this method, total length of centre lines of walls, long and short, has to be found out.long and short, has to be found out.  Find the total length of centre lines of walls of sameFind the total length of centre lines of walls of same type, having same type of foundations and footings andtype, having same type of foundations and footings and then find the quantities by multiplying the total centrethen find the quantities by multiplying the total centre length by the respective breadth and the height.length by the respective breadth and the height.  In this method, the length will remain the same forIn this method, the length will remain the same for excavation in foundations, for concrete in foundations,excavation in foundations, for concrete in foundations, for all footings, and for superstructure (with slightfor all footings, and for superstructure (with slight difference when there are cross walls or number ofdifference when there are cross walls or number of junctions).junctions).  This method is quicker but requires special attentionThis method is quicker but requires special attention and considerations at the junctions, meeting points ofand considerations at the junctions, meeting points of partition or cross walls.partition or cross walls.
  38. 38. CENTRE LINE METHODCENTRE LINE METHOD  For rectangular, circular polygonal (hexagonal,For rectangular, circular polygonal (hexagonal, octagonal etc) buildings having no inter or crossoctagonal etc) buildings having no inter or cross walls, this method is quite simple.walls, this method is quite simple.  For buildings having cross or partition walls, forFor buildings having cross or partition walls, for every junction, half breadth of the respectiveevery junction, half breadth of the respective item or footing is to be deducted from the totalitem or footing is to be deducted from the total centre length.centre length.  Thus in the case of a building with one partitionThus in the case of a building with one partition wall or cross wall having two junctions, deductwall or cross wall having two junctions, deduct one breadth of the respective item of work fromone breadth of the respective item of work from the total centre length.the total centre length.
  39. 39. CENTRE LINE METHODCENTRE LINE METHOD  For buildings having different types of walls, each set ofFor buildings having different types of walls, each set of walls shall have to be dealt separately.walls shall have to be dealt separately.  Find the total centre length of all walls of one type andFind the total centre length of all walls of one type and proceed in the same manner as described above. Similarlyproceed in the same manner as described above. Similarly find the total centre length of walls of second type and dealfind the total centre length of walls of second type and deal this separately, and so on.this separately, and so on.  Suppose the outer walls (main walls) are of A type andSuppose the outer walls (main walls) are of A type and inner cross walls are of B type.inner cross walls are of B type.  Then all A type walls shall be taken jointly first, and then allThen all A type walls shall be taken jointly first, and then all B type walls shall be taken together separately.B type walls shall be taken together separately.  In such cases, no deduction of any kind need be made for AIn such cases, no deduction of any kind need be made for A type walls, but when B type walls are taken, for eachtype walls, but when B type walls are taken, for each junction deduction of half breadth of A type walls (mainjunction deduction of half breadth of A type walls (main Walls) shall have to be made from the total centre length ofWalls) shall have to be made from the total centre length of B type walls.B type walls.
  40. 40. CENTRE LINE METHODCENTRE LINE METHOD  At corners of the building where two wallsAt corners of the building where two walls are meeting, no subtraction or addition isare meeting, no subtraction or addition is required.required.  In the figure, the double cross-hatchedIn the figure, the double cross-hatched areas marked P,Q,R, & S come twice,areas marked P,Q,R, & S come twice, while blank areas, A,B,C, & D do not comewhile blank areas, A,B,C, & D do not come at all, but these portions being equal inat all, but these portions being equal in magnitude, we get the correct quantity.magnitude, we get the correct quantity.
  41. 41. DESCRIPTION AND UNITS OFDESCRIPTION AND UNITS OF MEASUREMENT FORMEASUREMENT FOR COMMON ITEMSCOMMON ITEMS
  42. 42. 1 = SITE CLEARANCE WORKS1 = SITE CLEARANCE WORKS • This item is described in detail butThis item is described in detail but the price of this item is usuallythe price of this item is usually indicated asindicated as lump sum (LS).lump sum (LS). • The cost of this item is provided inThe cost of this item is provided in the estimate by judgment, accordingthe estimate by judgment, according to the description of the item and isto the description of the item and is indicated asindicated as Lump sum (L.S).Lump sum (L.S).
  43. 43. 2 = EXCAVATION FOR FOUNDATION TRENCHES2 = EXCAVATION FOR FOUNDATION TRENCHES • Earthwork in excavation for foundationEarthwork in excavation for foundation trenches is calculated by taking thetrenches is calculated by taking the dimensions of each trench asdimensions of each trench as length Xlength X breadth X depth.breadth X depth. • It is measured in cubic ft, cubic yard orIt is measured in cubic ft, cubic yard or cubic meter, according to the prevailingcubic meter, according to the prevailing practice.practice. • The payment for this item is generallyThe payment for this item is generally done as Rs. per hundred cubic ft.done as Rs. per hundred cubic ft.
  44. 44. FILLING IN TRENCHESFILLING IN TRENCHES  Filling in trenchesFilling in trenches after theafter the construction of foundationconstruction of foundation masonry is ordinary neglected. Ifmasonry is ordinary neglected. If the trench filling is, also taken inthe trench filling is, also taken in account, it may be calculated byaccount, it may be calculated by deducing the volume of masonrydeducing the volume of masonry in trenches from that of thein trenches from that of the volume of excavation.volume of excavation.
  45. 45. 3 = FOUNDATION CONCRETE (P.C.C.)3 = FOUNDATION CONCRETE (P.C.C.) • The type of concrete must be clearlyThe type of concrete must be clearly mentioned. The mix proportions and the type ofmentioned. The mix proportions and the type of cement, sand and coarse aggregate must becement, sand and coarse aggregate must be specified.specified. • This item is measured in cubic ft and theThis item is measured in cubic ft and the unit for measurement is, generally Rs. perunit for measurement is, generally Rs. per 100 cubic ft.100 cubic ft. • When the soil is soft or weak, one layer ofWhen the soil is soft or weak, one layer of drydry bricks or stone solingbricks or stone soling is applied below theis applied below the foundation concrete. The soling layer isfoundation concrete. The soling layer is computed incomputed in sq.ft (length X breadth),sq.ft (length X breadth), specifyingspecifying the thickness in description of item.the thickness in description of item.
  46. 46. 4 = BRICKWORK IN FOUNDATION UP TO PLINTH4 = BRICKWORK IN FOUNDATION UP TO PLINTH  Care must be taken, while taking dimensionsCare must be taken, while taking dimensions from the drawings in the bill of quantitiesfrom the drawings in the bill of quantities because the walls in this part of the structurebecause the walls in this part of the structure are in the form of steps with changingare in the form of steps with changing dimensions.dimensions.  This item is calculated in cft and the unit forThis item is calculated in cft and the unit for payment is Rs. per 100 cft.payment is Rs. per 100 cft.  In the description of work, the quality of bricksIn the description of work, the quality of bricks and mortar ratio must be specified. For example,and mortar ratio must be specified. For example, "Brickwork in foundation and plinth using first"Brickwork in foundation and plinth using first class bricks laid in (1:4) or (1:6) cement-sandclass bricks laid in (1:4) or (1:6) cement-sand (c/s) mortar———————“(c/s) mortar———————“
  47. 47. 5 = BRICKWORK IN SUPER STRUCTURE5 = BRICKWORK IN SUPER STRUCTURE Important considerations are:Important considerations are: a =a = Measurements of walls shall be taken in theMeasurements of walls shall be taken in the same order and in the same manner as forsame order and in the same manner as for brickwork in foundations and plinth.brickwork in foundations and plinth. b =b = In the first measurements, all openingsIn the first measurements, all openings such as doors, windows, veranda openings etc.such as doors, windows, veranda openings etc. shall be neglected. However, deductions shallshall be neglected. However, deductions shall be made for all openings in the walls, at thebe made for all openings in the walls, at the end of the item.end of the item.
  48. 48. BRICKWORK IN SUPER STRUCTURE (ctd)BRICKWORK IN SUPER STRUCTURE (ctd) c = In the description of the work, thec = In the description of the work, the qualityquality of bricks and mortar ratioof bricks and mortar ratio have to be specified.have to be specified. d =d = Masonry for archesMasonry for arches shall be paid separately,shall be paid separately, at a different rate.at a different rate. e = The height of super structure is verye = The height of super structure is very important. Generally the quantities areimportant. Generally the quantities are worked out for each storey separately andworked out for each storey separately and rates would be different for different storeisrates would be different for different storeis because of additional labor work, scaffoldingbecause of additional labor work, scaffolding and shuttering.and shuttering. f =f = The item is worked out in cft and theThe item is worked out in cft and the standard unit for payment is Rs. Per 100 cft.standard unit for payment is Rs. Per 100 cft.
  49. 49. 6 = DAMP PROOF COURSE (D.P.C.)6 = DAMP PROOF COURSE (D.P.C.)  Horizontal D.P.C.Horizontal D.P.C. shall extend the full width ofshall extend the full width of the super structure walls, however, it shall notthe super structure walls, however, it shall not be provided across doorways and verandabe provided across doorways and veranda openings. It is also provided in roof and floors.openings. It is also provided in roof and floors.  Vertical D.P.C.Vertical D.P.C. is provided in external walls,is provided in external walls, especially, in the walls of basements.especially, in the walls of basements.  The quantity of D.P.C. is estimated in square ft.The quantity of D.P.C. is estimated in square ft. (on area basis) and standard unit for payment(on area basis) and standard unit for payment is Rs. per 100 sft.is Rs. per 100 sft.
  50. 50. 7 = ROOFING & RCC WORKS7 = ROOFING & RCC WORKS  Area of theArea of the Roof slabRoof slab is calculated by taking insideis calculated by taking inside dimensions of the room plus a bearing of the roof slabdimensions of the room plus a bearing of the roof slab on the walls, on all sides.on the walls, on all sides.  For R.C.C. Roof slabs and beamsFor R.C.C. Roof slabs and beams, the total quantities, the total quantities of concrete and steel are estimated, separately.of concrete and steel are estimated, separately.  The quantity of plain concrete is estimated in cft andThe quantity of plain concrete is estimated in cft and the standard unit for payment of concrete is Rs. perthe standard unit for payment of concrete is Rs. per 100 cft.100 cft.  Volume ofVolume of Reinforcing SteelReinforcing Steel is not deducted , whileis not deducted , while estimating the volume of plain concrete for payment.estimating the volume of plain concrete for payment.  c =c = R.C.C. lintelsR.C.C. lintels over wall openings such as doorsover wall openings such as doors and windows are also included in R.C.C. work.and windows are also included in R.C.C. work.
  51. 51. ROOFING & RCC WORKS (ctd)ROOFING & RCC WORKS (ctd) • Roof consisting of beams, battens, and tiles or woodenRoof consisting of beams, battens, and tiles or wooden planks is estimated for each part, separately.planks is estimated for each part, separately. Steel beam is estimated by weight, whereas, woodenSteel beam is estimated by weight, whereas, wooden beam is measured in cft. Battens are estimated bybeam is measured in cft. Battens are estimated by numbers indicating there size and lengths. Tiles arenumbers indicating there size and lengths. Tiles are also estimated by size and numbers.also estimated by size and numbers. • Roof finishingRoof finishing may consist of bitumen coating and/ormay consist of bitumen coating and/or Polythene sheets (water proofing) , earth filling (heatPolythene sheets (water proofing) , earth filling (heat proofing) and brick tiles, etc.proofing) and brick tiles, etc. Dimensions are taken from inner face to inner face ofDimensions are taken from inner face to inner face of parapet walls.parapet walls. This item is estimated in sft and a composite rate forThis item is estimated in sft and a composite rate for payment is taken as Rs. per 100 sft of the roof area.payment is taken as Rs. per 100 sft of the roof area.
  52. 52. 8 = REINFORCEMENT STEEL /8 = REINFORCEMENT STEEL / GENERAL STEEL WORKGENERAL STEEL WORK  Steel is provided separately from R.C.C.Steel is provided separately from R.C.C. per ton, per Kg, or per cwt (standardper ton, per Kg, or per cwt (standard weight also calledweight also called Quintal or centuryQuintal or century weightweight equal to 112 Ibs = 50Kg).equal to 112 Ibs = 50Kg).  Quantity of steel can either be workedQuantity of steel can either be worked out byout by rules of thumb practicerules of thumb practice or byor by intensive calculationsintensive calculations taking the lengthtaking the length and diameter of steel bars from theand diameter of steel bars from the working drawings showing reinforcementworking drawings showing reinforcement details and bar-bending schedules. Indetails and bar-bending schedules. In taking length of bars, due margin oftaking length of bars, due margin of hooks, bends and overlappinghooks, bends and overlapping is givenis given
  53. 53. REINFORCEMENT STEEL / GENERAL STEELREINFORCEMENT STEEL / GENERAL STEEL WORK (-ctd-)WORK (-ctd-)  As aAs a Rule Of Thumb PracticeRule Of Thumb Practice,, forfor ordinary beams and slabs for residences,ordinary beams and slabs for residences, assume 6.75 Ibs of steel per cft of R.C.C. work.assume 6.75 Ibs of steel per cft of R.C.C. work. However, for R.C.C. columns, it varies from 8However, for R.C.C. columns, it varies from 8 to 10 Ibs per cft., because normally, we useto 10 Ibs per cft., because normally, we use 2% of steel in columns.2% of steel in columns.  Percentage of steelPercentage of steel means, area of steel dividedmeans, area of steel divided by total area of the column multiplied by 100by total area of the column multiplied by 100 and 1% of steel in columns corresponds to aand 1% of steel in columns corresponds to a quantity of 4.5 Ibs/cft.quantity of 4.5 Ibs/cft.
  54. 54. 9 = FLOORS9 = FLOORS  Cement concrete floors. Mosaic floors, and brickCement concrete floors. Mosaic floors, and brick floors are most commonly used.floors are most commonly used.  Payments are made separately for differentPayments are made separately for different layers, like, topping, lean concrete, sand filling,layers, like, topping, lean concrete, sand filling, earth filling, etc.earth filling, etc.  Earth filling, sand filling and lean concrete areEarth filling, sand filling and lean concrete are paid by volume, whereas, topping is paid onpaid by volume, whereas, topping is paid on area basis, mentioning thickness in thearea basis, mentioning thickness in the description.description.  Standard unit for payment of topping is, usually,Standard unit for payment of topping is, usually, Rs. per 100 sft.Rs. per 100 sft.  TheThe skirtingskirting is estimated in running ft.is estimated in running ft.
  55. 55. 10 = PLASTERING10 = PLASTERING  The type of plaster, proportioning of materialsThe type of plaster, proportioning of materials and minimum thickness of plaster have to beand minimum thickness of plaster have to be specified.specified.  The quantity is calculated for total wall surfaceThe quantity is calculated for total wall surface without deduction for openings such as doorswithout deduction for openings such as doors windows, ventilators, etc. However, if the wall iswindows, ventilators, etc. However, if the wall is being plastered on both the faces, the deductionsbeing plastered on both the faces, the deductions for opening areas are made from one side only.for opening areas are made from one side only.  Standard unit for payment is Rs. per 100 sft.Standard unit for payment is Rs. per 100 sft.  HeightHeight is also specified for plastering because, foris also specified for plastering because, for greater heights, labor cost increases. The rategreater heights, labor cost increases. The rate varies according to the number of the storeyvaries according to the number of the storey
  56. 56. 11 = WOODWORK/CARPENTRY11 = WOODWORK/CARPENTRY  The type of material used and the quantity ofThe type of material used and the quantity of finish required should be clearly indicated in thefinish required should be clearly indicated in the description of the item.description of the item.  The rate for any type of woodwork includesThe rate for any type of woodwork includes cutting of timber to required sizes, joinerycutting of timber to required sizes, joinery work, fittings and fastenings, three coats of oilwork, fittings and fastenings, three coats of oil paints or varnish, bolts, locks, handles, etc.paints or varnish, bolts, locks, handles, etc.  The measurements are taken for the overallThe measurements are taken for the overall area of doors, windows, etc.area of doors, windows, etc. If volume ofIf volume of timber required for these items is to be findingtimber required for these items is to be finding out, the computed area is multiplied with theout, the computed area is multiplied with the nominal thickness and an allowance of 25% isnominal thickness and an allowance of 25% is made for wastage of timber.made for wastage of timber.
  57. 57. WOODWORK/CARPENTRY (-ctd-)WOODWORK/CARPENTRY (-ctd-)  Rectangular wooden beams, verticalRectangular wooden beams, vertical columns, trusses, etc., are measured incolumns, trusses, etc., are measured in cft.cft.  Wooden stairs are measured in numberWooden stairs are measured in number of steps and description of the itemof steps and description of the item includes the riser, tread, and width of theincludes the riser, tread, and width of the steps.steps.  Wooden shelves are measured in runningWooden shelves are measured in running ft (RFT).ft (RFT).
  58. 58. 12 = PLUMBING WORK/SANITARY FITTINGS12 = PLUMBING WORK/SANITARY FITTINGS  For water supply and drainage works in aFor water supply and drainage works in a building, the pipe lines and sewer lines arebuilding, the pipe lines and sewer lines are measured in RFT, while other items aremeasured in RFT, while other items are measured in numbers.measured in numbers.  These items include wash hand basinsThese items include wash hand basins (W.H.B.), kitchen basins (which may be of(W.H.B.), kitchen basins (which may be of glazed ceramic, mosaic, or stainless steel),glazed ceramic, mosaic, or stainless steel), water closets (W.C., which may be of Europeanwater closets (W.C., which may be of European type, or local type), flushing tanks (alsotype, or local type), flushing tanks (also known as flushing cisterns), shower rose, andknown as flushing cisterns), shower rose, and all type of water tapes.all type of water tapes.
  59. 59. PLUMBING WORK/SANITARY FITTINGS (-ctd-)PLUMBING WORK/SANITARY FITTINGS (-ctd-)  Within sewer lines,Within sewer lines, man holes or inspection chambersman holes or inspection chambers areare to be provided at every corner and also at a distance, notto be provided at every corner and also at a distance, not exceeding every 50 ft inside the house and every 100 ftexceeding every 50 ft inside the house and every 100 ft outside the house.outside the house.  TheThe size of man holesize of man hole may bemay be 2.5ft X 2,5ft2.5ft X 2,5ft for low depthsfor low depths and 3ft X 3ft, 4ft X 4ft or 5ft X 5ft for deep depths.and 3ft X 3ft, 4ft X 4ft or 5ft X 5ft for deep depths.  Drainage pipe lines outside the covered area but inside theDrainage pipe lines outside the covered area but inside the boundary wallboundary wall are, usually, of R.C.C. with minimumare, usually, of R.C.C. with minimum diameter 4 in, however, these are available in differentdiameter 4 in, however, these are available in different sizes.sizes.  Inside the buildingInside the building, drainage pipe is, usually, of C.I. with, drainage pipe is, usually, of C.I. with minimum diameter 3 in.minimum diameter 3 in.  Water supply pipes are, usually, G.I. pipes., estimated inWater supply pipes are, usually, G.I. pipes., estimated in RFT in different dias.RFT in different dias.  Other accessories, like sockets, elbows, tees, reducers,Other accessories, like sockets, elbows, tees, reducers, unions, etc., are estimated in numbers.unions, etc., are estimated in numbers.
  60. 60. 13 = ELECTRIC FITTINGS13 = ELECTRIC FITTINGS • All the accessories used in electricAll the accessories used in electric fittings are described in detail andfittings are described in detail and payment is done in numbers or RFTpayment is done in numbers or RFT.. • AllAll wires and pipeswires and pipes are taken in RFTare taken in RFT while other items are taken in No’s.while other items are taken in No’s.
  61. 61. SOME COMMON RELATIONSSOME COMMON RELATIONS USED IN BUILDINGUSED IN BUILDING ESTIMATESESTIMATES
  62. 62. 1- MORTARS (a)Cement-Sand Mortars 120 cft dry yields 100 cft wet (b) Lime-Sand Mortars 113 cft dry yields 100 cft wet (C) Cement-Lime-Sand Mortars 112 cft dry yields 100 cft wet (d) Dry mortar required for 100 sft of ½” thick cement plaster =6 cft
  63. 63. 2- CEMENT CONCRETE 154 cft dry yields 100 cft wet 3- BRICKWORK (a) 100 cft Brick masonary Bricks ------------1350 Dry Mortar ------- 30 cft Wet Mortar ------- 25 cft (b) 100 sft surface area using bricks on bed Bricks --------------360 Mortar ------------- 9 cft (b) 100 sft surface area using bricks on edge Bricks --------------540 Mortar ------------- 13 cft
  64. 64. 4- POINTING PER 1000 SFT AREA Ingredient 1:1 1:2 1:3 Cement 8 cft 5 cft 3.8 cft Sand 8 cft 10 cft 11.4 cft 5- EARTHWORK Output of labor assuming one man working 8 hours per day with lift up to 5 ft or less TYPE OF SOIL EXCAVATION PER DAY Medium Soil 75 – 100 cft Hard / Stiff Soil 50 – 75 cft Rocky Soil 25 – 30 cft
  65. 65. 6- BITUMEN Bitumen for 100 sft of DPC (first coat) = 15 Kg Bitumen for 100 sft of DPC (second coat) = 10 Kg 7- CEMENT 1 Bag ------------- 50 Kg (Weight), 1.25 cft (Volume) 8- SPECIFIC WEIGHTS RCC --------------- 150 lbs / cft PCC --------------- 145 lbs / cft Aggregate ------- 166 lbs / cft
  66. 66. 9- TIMBER Timber for 100 sft of Panelled Doors and Windows = 13 cft Timber for 100 sft of Glazed windows and Ventilators = 8 cft 10- WHITE WASH Lime for 100 sft of white wash (one coat) = 1.00 Kg
  67. 67. ESTIMATION OF A SIMPLEESTIMATION OF A SIMPLE BUILDINGBUILDING
  68. 68. PLANPLAN
  69. 69. FOUNDATIONSFOUNDATIONS
  70. 70. SPECIFICATIONSSPECIFICATIONS  Clear height of roomsClear height of rooms:: 12’12’  Clear height of VerandahClear height of Verandah:: 10’-0”10’-0”  Plinth levelPlinth level:: 1’-6”1’-6”  Thickness of roof slabThickness of roof slab:: 4”4”  Thickness of RCC shadeThickness of RCC shade:: 3”3”  Depth of RCC Beams in VerandahDepth of RCC Beams in Verandah:: 1’-6” below verandah slab1’-6” below verandah slab  Parapet wallParapet wall:: 1’-0” (Clear height above roof tiles)1’-0” (Clear height above roof tiles)  Ventilators (4 No.)Ventilators (4 No.):: 2’-6” x 1’-6”2’-6” x 1’-6”  RCC lintelRCC lintel:: 6” in depth6” in depth  Damp proof coarseDamp proof coarse:: 1 ½”thick PCC (1:2:4) + 2 coats of hot1 ½”thick PCC (1:2:4) + 2 coats of hot bitumen + polythene sheetbitumen + polythene sheet  Full foundationFull foundation up to plinth level along verandah periphery isup to plinth level along verandah periphery is providedprovided  Internal finishesInternal finishes:: Three coats of white wash/distemper paintThree coats of white wash/distemper paint  External finishesExternal finishes:: Three coats of Weather shield paintThree coats of Weather shield paint
  71. 71. Center to Center LengthsCenter to Center Lengths  L1 =L1 = (10’-0”) + (12’-0”) + (0’-4 ½”) + (0’-4 ½”) +(10’-0”) + (12’-0”) + (0’-4 ½”) + (0’-4 ½”) + (0’-4 ½”) =(0’-4 ½”) = 23’-1 ½”23’-1 ½”  S1& S2 =S1& S2 = (12’-0”) + (0’-4 ½”) + (0’-4 ½”) =(12’-0”) + (0’-4 ½”) + (0’-4 ½”) = 12’-9”12’-9”  S3 =S3 = (8’-0”) + (0’-4 ½”) - (0’-4 ½”) =(8’-0”) + (0’-4 ½”) - (0’-4 ½”) = 8’-0”8’-0”
  72. 72. BILL OF QUANTITIESBILL OF QUANTITIES 1- CIVIL WORKS1- CIVIL WORKS S. No Description of item No Measurement Quantity Total Quantity Remarks Length Breadth Depth 1 Earthwork for excavation in foundation trenches L1 3 25’-7 ½ // 2’-6” 3’-6” 224.22 cft 672.66 cft L = 23’-1 ½”+2’-6” = 25’-7 ½” S1 2 10’-3” 2’-6” 3’-6” 89.69 cft 179 .38 cft L = 12’-9”-(2’-6)” = 10’-3” S2 1 10’-3” 2’-1 ½ ” 3’-6” 76.23 cft 76.23 cft L = 12’-9”-(2’-6)” = 10’-3” S3 2 5’-6” 2’-6” 3’-6” 48.13 cft 96.25 cft L = 8’-0”-(2’-6)” = 5’-6” Total = 1024.52 cft
  73. 73. 2 Earth work in filing under floors Room No.1 1 12’-0” 12’-0” 0’-6 ½ ” 78.00 cft 78.00 cft D = 1’-6”-(0’-11 ½”) = 6 1/2” Room No.2 1 10’-0” 12’-0” 0’-6 ½ ” 65.00 cft 65.00 cft Veranda 1 22’-4 ½ ” 7’-3” 0’-6 ½” 87.87 cft 87.87 cft L = 10’-0”+(0’-4½”)+(12’-0”) = 22’-4 ½” B = 8’-0”-(0’-9)”= 7’-3” Total = 230.87 cft 3 P.C.C (1:4:8) in foundation using crushed or broken stones Length & Breadth same as for Foundation trenches (Item No. 1) L1 3 25’-7 ½ ” 2’-6” 0’-6” 32.00 cft 96.00 cft S1 2 10’-3” 2’-6” 0’-6” 12.81 cft 25.63 cft S2 1 10’-3 2’-1 ½” 0’-6” 10.89 cft 10.89 cft S3 2 5’-6 2’-6” 0’-6” 6.87 cft 13.75 cft Total= 146.27 cft
  74. 74. 4 Burnt brick work in foundation and plinth using first class bricks in (1:6) cements sand mortar. (a) L1 1st step 3 24’-7 ½ ” 1’-6” 0’-6” 18.47 cft 55.40 cft L = 23’-1½”+(1’-6”) = 24’-7½” 2nd step 3 24’-3” 1’-1 ½ “ 0’-6” 13.64 cft 40.92 cft L = 23’-1½”+(1’-1½”) = 24’-3” 3rd step up to plinth level 3 23’-10 ½” 0’-9” 3’-4 ½” 60.43 cft 181.30 cft L = 23’-1½”+(0’-9”) = 23’-10½” D = 2’-0” +(1’-6”) –(0’-1 ½”) = 3’-4 ½” Total= 277.62 cft (b) S1 1st step 2 11’-3” 1’-6” 0’-6” 8.44 cft 16.88 cft L = 12’-9”-(1’-6”) = 11’-3” 2nd step 2 11’-7 ½ ” 1’-1 ½ ” 0’-6” 6.54 cft 13.08 cft L = 12’-9”-( 1’-1½”) = 11’-7½” 3rd step up to plinth level 2 12’-0” 0’-9” 3’-4 ½ ” 30.37 cft 60.75 cft L = 12’-9”-( 0’-9”) = 12’-0” Total= 90.71 cft
  75. 75. (c) S2 1st step 1 11’-3” 1’-1 ½ ” 0’-6” 6.33 cft 6.33 cft L = 12’-9”-(1’-6 ”) = 11’-3” 2nd step 1 11’-7 ½ ” 0’-9 ” 0’-6” 4.36 cft 4.36 cft L = 12’-9”-( 1’-1½”)= 11’-7½” 3rd step up to plinth level 1 12’-0” 0’-4 ½ ” 3’-4 ½ ” 15.19 cft 15.19 cft L = 12’-9”-( 0’-9”) = 12’-0” Total= 25.88 cft (d)S3 1st step 2 6’-6” 1’-6” 0’-6” 4.87 cft 9.75 cft L = 8’-0”-(1’6”) = 6’-6’ 2nd step 2 6’-10 ½ ” 1’-1 ½” 0’-6” 3.86 cft 7.73 cft L = 8’-0”-(1’-1½”) = 6’-10½” 3rd step up to plinth level 2 7’-3” 0’-9” 3’-4 ½ ” 18.35 cft 36.70 cft L = 8’-0”-(0’-9”) = 7’-3” Total= 54.18 cft (e) steps in front of verandah 1st step 1 23’-10 ½” 2’-0” 0’-6” 23.88 cft 23.88 cft L = 23’-1½”+(0’-4½”) + (0’-4½”) =23’-10½” 2nd step 1 23’-10 ½” 1’-0” 0’-6” 11.94 cft 11.94 cft Total= 35.82 cft G.Total= 484.21 cft
  76. 76. 5 1-1/2” thick P.C.C (1:2:4) in DPC including two coats of hot bitumen & 2 layers of Polythene sheet Length & Breadth same as for plinth wall L1 2 23’-10 ½” 0’-9” - 17.9 sft 35.81 sft S1 2 12’-0” 0’-9” - 9.00 sft 18.00 sft S2 1 12’-0” 0’-4 ½” - 4.5 sft 4.50 sft Verandah columns 3 0’-9” 0’-9” - 0.56 sft 1.69 sft Total = 60.00 sft Deduction of Door sills 1 4’-0” 0’-9” - 3.00 sft 3.00 sft 1 4’-0’ 0’-4 ½” - 1.50 sft 1.50sft Total= 4.50 sft Net Total = 55.50 sft
  77. 77. 6 Brick work in super structure using first class bricks in (1:4) cement sand mortar Length & Breadth same as for plinth wall L1 2 23’-10 ½” 0’-9” 13’-10 ½” 248.45 cft 496.90 cft H = 12’-0” (Room height) + 0’-4” ( Slab) + 0’-4’’ (Earth filling) + 0’-1”(Mud plaster) + 0’-1½” (Tiles) + 1’-0” (P. wall) = 13’-10½” S1 2 12’-0” 0’-9” 13’-10 ½” 124.87 cft 249.75 cft S2 1 12’-0” 0’-4½ ” 12’-0” 54.00 cft 54.00 cft No Parapet Walls Verandah columns 3 0’-9” 0’-9” 8’-6” 4.78 cft 14.34 cft H=10’-0”- (1’-6”)=8’-6” Verandah parapet walls (i) L1 1 23’-10 ½” 0’-9” 1’-6 ½” 27.60 cft 27.60 cft H = 0’-4” (Earth filling) + 0’- 1” (Mud plaster) + 0’-1½” (Tiles) + 1’-0” (P. walls) = 1’-6½” (ii) S3 2 7’-3” 0’-9” 1’-6 ½ ” 8.38 cft 16.76 cft Total= 859.35 cft
  78. 78. Deduction Doors 1 4’-0” 0’-9” 7’-0” 21.00 cft 21.00 cft 1 4’-0” 0’-4 ½ ” 7’-0” 10.5 cft 10.50 cft Windows 3 4’-0” 0’-9” 4’-0” 12.00 cft 36.0 cft Ventilators 4 2’-6” 0’-9” 1’--6” 2.81 cft 11.25 cft Shelves 2 4’-0” 0’-6” 5’-0” 10.00 cft 20.00 cft RCC lintels over (i)doors 1 5’-0” 0’-9” 0’-6’ 1.87 cft 1.87 cft 1 5’-0” 0’-4 ½ ” 0’-6’ 0.93 cft 0.93 cft (ii)Windows 3 5’-0” 0’-9” 0’-6’ 1.87 cft 5.62 cft (iii)Ventilators 4 3’-6” 0’-9” 0’-6’ 1.31 cft 5.25 cft (iv)Shelves 2 5’-0” 0’-9” 0’-6’ 1.87 cft 3.75 cft Total = 116.18 cft Net Total = 743.17 cft
  79. 79. 7 Reinforced cement concrete (1:2:4) as in roof slab, lintels, columns, beams etc., (reinforcement will be measured separately) There is 4½” bearing of both slabs on all walls Roof slab of rooms 1 23’-1 ½” 12’-9” 0’-4” 98.28 cft 98.28 cft L = 10”-0” + 12’-0” + 0’-4½” + 0’-9” (2 bearings) = 23’-1½” B = 12’-0” + 0- 4½”(bearing) + 0’- 4½”(bearing) = 12’-9” Roof slab of Verandah 1 23’-10 ½ ” 8’-4 ½ ” 0’-4” 66.65 cft 66.65 cft B = 8’-0” + 0’-4½” (bearing) = 8’-4½” Verandah beam Long beam 1 23’-1 0½” 0’-9” 1’-6” 26.86 cft 26.86 cft Short beam 2 7’-7 ½ ” 0’-9” 1’-6” 8.59 cft 17.18 cft L=8’-0”-(0’-9”) + (0’- 4½”) = 7’-7½”
  80. 80. Lintels Doors 1 5’-0” 0’-9” 0’-6’ 1.87 cft 1.87 cft 1 5’-0” 0’-4½ ” 0’-6’ 0.93 cft 0.93 cft Windows 3 5’-0” 0’-9” 0’-6’ 1.87 cft 5.62 cft Ventilators 4 3’-6” 0’-9” 0’-6’ 1.31 cft 5.25 cft Shelves 2 5’-0” 0’-9” 0’-6’ 1.87 cft 3.75 cft Shades 2 5’-0” 1’-6” 0’-3” 1.87 cft 3.75 cft Total= 226.39 cft
  81. 81. 8 Mild steel round bars as reinforcement including cutting, bending, binding and placing reinforcement in position 6.75 lbs/cft steel of 226.39 cft concrete =1528.13 lbs Total= 1529.00 lbs 9 Roof insulation comprising of 2 coats of hot bitumen, 4” thick earth filling, 1” thick mud plaster and 1-1/2” thick brick tiles jointed and pointed in cement sand mortar (1:3) Rooms (1 & 2) 1 22’-4 ½ ” 12’-0” - 268.50 sft 268.5 sft L = 10’-0”+ (12”- 0”) + (0’-4½”) = 22’- 4-½” Verandah 1 22’-4 ½ ” 7’-3” - 162.22 cft 162.22 cft B = 8’- 0”- (0’-9”) = 7’-3” Total = 430.72 sft
  82. 82. 10 Sand under floors Room No.1 1 10’-0” 12’-0” 0’-6” 60.00 cft 60.00 cft Room No.2 1 12’-0” 12’-0” 0’-6” 72.00 cft 72.00 cft Verandah 1 22’-4½ ” 7’-3” 0’-6” 81.11 cft 81.11 cft Total = 213.11 cft 11 Cement concrete (1:4:8) as under layer of floors Room No.1 1 10’-0” 12’-0” 0’-4” 40.00 cft 40.00 cft Room No.2 1 12’-0” 12’-0” 0’-4” 48.00 cft 48.00 cft Verandah 1 22’-4 ½ ” 7’-3” 0’-4” 54.07 cft 54.07 cft Total = 142.07 cft
  83. 83. 12 1-1/2” thick cement concrete (1:2:4) as top layer of floor, finished smooth Room No.1 1 10’-0” 12’-0” - 120.00 sft 120.00 sft Room No.2 1 12’-0” 12’-0” - 144.00 sft 144.00 sft Verandah 1 23’-10 ½” 8’-0” - 191.00 sft 191.00 sft L = 10’-0” + (12’-0”) + (0’-4 ½ ”) + (0’-9”) + (0’-9”) = 23’-10 ½ ” Door sill 1 1 4’-0’ 0’-9” - 3.00 sft 3.00 sft Door sill 1 1 4’-0” 0’-4 ½ ” - 1.50sft 1.50sft Total= 459.5 sft Deduction Columns 3 0’-9” 0’-9” - 0.56 sft 1.68sft Net Total= 457.80 sft
  84. 84. 13 ½” thick (1:3) cement sand plaster to walls finished smooth Inner side Room No.1 (Long wall) 2 12’-0” - 12’-0” 144.00 sft 288.00 sft Room No.1(Short wall) 2 10’-0” - 12’-0” 120.00 sft 240.00 sft Room No.1 (Ceiling) 1 10’-0” - 12’-0” 120.00 sft 120.00 sft Room No.2 (Long wall) 2 12’-0” - 12’-0” 144.00 sft 288.00 sft Room No.2(Short wall) 2 12’-0” - 12’-0” 144.00 sft 288.00 sft Room No.2 (Ceiling) 1 12’-0” - 12’-0” 144.00 sft 144.00 sft Verandah wall 1 23’-10 ½” - 10’-0” 238.75 sft 238.75 sft L = (10’-0”) + (12’-0”) + (0’-4½ “) +(0’-9”)+ (0’-9”) = 23’-10 ½ “ Verandah ceiling 1 22’-4 ½” - 7’ –3” 162.26 sft 162.26 sft L = (10’-0”)+(12’-0”)L = (10’-0”)+(12’-0”) +(0’-4 ½ “) = 22’-½“+(0’-4 ½ “) = 22’-½“ Columns 3 3’-0” - 8’-6” 25.50 sft 76.5 sft L = (0’-9”) + (0’-9”) + (0’-9”) + (0’-9”) = 3’-0 ” Long beam (internal side) 1 22’-4 ½” - 1’-6” 33.55 sft 33.55 sft Long beam (soffit) 2 10’-9 ¾” - 0’-9” 8.10 sft 16.21 sft L={(22’-4 ½”)-(0’-9”)}/2 =10’-9¾” Short beam (internal sides) 2 7’-3” - 1’-6” 10.87 sft 21.74 sft L={(8’-0”)-(0’-9”)}L={(8’-0”)-(0’-9”)} = 7’-3”= 7’-3” Short beam (soffit) 2 7’-3” - 0’-9” 5.43 sft 10.87 sft
  85. 85. Door jambs 2 0’-9” - 7’-0” 5.25 sft 10.50 sft 2 0’-4½” - 7’-0” 2.63 sft 5.25 sft 1 0’-9” - 4’-0” 3.0 sft 1.50 sft 1 0’-4½” - 4’-0” 1.50 sft 3.00 sft Window jambs 6 0’-9” - 4’-0” 3.00 sft 18.00 sft 6 0’-9” - 4’-0” 3.00 sft 18.00 sft Ventilator jambs 8 0’-9” - 2’-6” 1.88 sft 15.00 sft 8 0’-9” - 1’-6” 1.19 sft 9.00 sft Shelves 4 0’-6” - 5’-0” 2.5 sft 10.00 sft 4 0’-6” - 4’-0” 2.0 sft 8.00 sft Outer side Rear wall (From 6” below G.L. to Parapet walls) 1 23’-10 ½” - 15’- 10½” 379.00 sft 379.00 sft H = (0’-6”) + (1’-6”) + (12’-0”) + (0’-4”) + (0’- 4’’) + (0’-1”) + (0’-1½”) + (1’-0”) = 15’-10½” Left & Right side wall 2 13’-6” - 15’- 10½” 214.32 sft 428.64 sft L= (12’-0”) + (0’-9”) + (0’-9”) = 13’-6” Front side (above verandah roof) 1 23’-10 ½” - 3’-0” 71.63 sft 71.63 sft H = (12’-0”) + 0’-10½”) + (1’-0”) - (10’-10 ½” ) = 3’-0” Left & Right side plinth of verandah 2 8’-0” - 2’-0” 16.00 sft 32.00 sft H = (1’ – 6’’) + (0’ – 6’’) = 2’ – 0’’
  86. 86. Parapet wall Inner side of rooms 2 22’-4 ½” - 1’-0” 22.37 sft 44.70 sft L = (10’-0”)+(12’-0”)L = (10’-0”)+(12’-0”) +(0’-4 ½ “)+(0’-4 ½ “) = 22’-4 ½ “= 22’-4 ½ “ 2 12’-0” - 1’-0” 12.00 sft 24.00 sft Inner side of Verandah 1 22’-4 ½” - 1’-0” 22.37 sft 22.37 sft 2 7’-3 “ - 1’-0” 7.25 sft 14.50 sft Outer side of Verandah 1 23’-10 ½” - 3’- 4 ½” 67.66sft 67.66 sft H = (1’-6”)+(0’-4”)H = (1’-6”)+(0’-4”) +(0’-6 ½”) + (1’-0 “)+(0’-6 ½”) + (1’-0 “) = 3’-4 1/2= 3’-4 1/2//// 2 8’-0” - 2’-10” 22.67 sft 45.33 sft Top of parapet wall (Rooms) 2 23’-10 ½” - 0’-9” 17.9 sft 35.80 sft 2 12’-0” - 0’-9” 9.00 sft 18.00 sft Top of parapet wall (Verandah) 1 23’-10 ½” - 0’-9” 17.90 sft 17.90 sft 2 7’-3” - 0’-9” 5.43 sft 10.87 sft
  87. 87. Steps Tread 2 23’-10 ½” - 1’-0” 23.87 sft 47.74 sft Riser 3 23’-10 ½” - 0’-6” 11.93 sft 35.80 sft Sides 2 2’ – 00’’ 0’-6” 1.00 sft 2.00 sft 2 1’ – 00’’ 0’-6” 0.5 sft 1.00 sft Total= 3316.07 sft Deduction Doors 2 4’-0’ - 7’-0” 28.00 sft 56.00 sft Windows 3 4’-0’ - 4’-0” 16.00 sft 48.00 sft Ventilators 4 2’-6” - 1’-6” 3.75 sft 15.00 sft Total= 119.00 sft Net Total= 3197.07 sft
  88. 88. 14 Wood work as in (i) 1 ½” thick wooden doors with chowkat,. 2 4’-0’ - 7’-0” 28.00 sft 56.00 sft Total = 56.00 sft (ii) Glazed and gauzed windows and ventilators. 3 4’-0’ - 4’-0” 16.00 sft 48.00 sft 4 2’-6’ - 1’-6” 3.75 sft 15.00 sft Total = 63.00 sft G.Total = 119.00 sft 15 Three coats of painting to doors , windows and ventilators - - - - - .(2 x Qty of item No.14) = 238.0 sft Total 238.00 sft
  89. 89. 16 Three coats of distempering/ white washing to walls (Internal Side) Room No.1 (Long wall) 2 12’-0” - 12’-0” 144.00 sft 288.00 sft Room No.1 (Short wall) 2 10’-0” - 12’-0” 120.00 sft 240.00 sft Room No.1 (Ceiling) 1 10’-0” - 12’-0” 120.00 sft 120.00 sft Room No.2 (Long wall) 2 12’-0” - 12’-0” 144.00 sft 288.00 sft Room No.2 (Short wall) 2 12’-0” - 12’-0” 144.00 sft 288.00 sft Room No.2 (Ceiling) 1 12’-0” - 12’-0” 144.00 sft 144.00 sft Verandah wall 1 23’-10 ½” - 10’-0” 238.75 sft 238.75 sft Verandah Ceiling 1 22’-4 ½” - 7’ –3” 162.26 sft 162.26 sft Columns 3 3’-0” - 8’-6” 25.50 sft 76.50 sft Long beam (sides) 1 22’-4 ½” - 1’-6” 33.55 sft 33.55 sft Long beam (soffit) 2 10’-9 ¾” - 0’-9” 8.10 sft 16.21 sft L= {(22’-4 ½”)-(0’-9”)}/2 = 10’-9¾” Short beam (sides) 2 7’-3” - 1’-6” 10.87 sft 21.74 sft Short beam (soffit) 2 7’-3” - 0’-9” 5.43 sft 10.87 sft
  90. 90. Door jambs 2 0’-9” - 7’-0” 5.25 sft 10.50 sft 2 0’-4½” - 7’-0” 2.63 sft 5.25 sft 1 0’-9” - 4’-0” 3.0 sft 1.50 sft 1 0’-4½” - 4’-0” 1.50 sft 3.00 sft Window jambs 6 0’-9” - 4’-0” 3.00 sft 18.00 sft 6 0’-9” - 4’-0” 3.00 sft 18.00 sft Ventilator jambs 8 0’-9” - 2’-6” 1.88 sft 15.00 sft 8 0’-9” - 1’-6” 1.19 sft 9.00 sft Shelves 4 0’-6” - 5’-0” 2.5 sft 10.00 sft 4 0’-6” - 4’-0” 2.0 sft 10.00 sft Total = 2017.16 sft Deduction Doors 4 4’-0’ - 7’-0” 28.00 sft 112.00 sft Windows 4 4’-0’ - 4’-0” 16.00 sft 64.00 sft Ventilators 6 2’-6” - 1’-6” 3.75 sft 22.50 sft Total= 142.5 sft Net Total = 1874.66 sft
  91. 91. 17 Three coats of Weather shield paint to walls. (External side) Rear wall 1 23’-10 ½” - 15’-4½” 367.07 sft 367.07 sft H =H = ={(15’-10 ½”)- (0’-6”) = 15’-4 1/2” Left & Right side wall 2 13’-6” - 15’-4½” 207.5 sft 415.13 sft Front side (above verandah roof) 1 23’-10½” - 3’-0” 71.63 sft 71.63 sft Left & Right side wall of verandah 2 8’-0” - 2’-0” 16.00 sft 32.00 sft Parapet wall Inner side of rooms 2 22’-4 ½” - 1’-0” 22.37 sft 44.70 sft 2 12’-0” - 1’-0” 12.00 sft 24.00 sft Inner side of Verandah 1 22’-4 ½” - 1’-0” 22.37 sft 22.37 sft 2 7’-3” - 1’-0” 7.25 sft 14.50 sft Outer side of Verandah 1 23’-10½” - 2’-10½ ” 67.66 sft 67.66 sft 2 8’-0” - 2’-10½ ” 22.67 sft 45.32 sft Top of parapet wall (Rooms) 2 23’-10 ½” - 0’-9” 17.9 sft 35.80 sft 2 12’-0” - 0’-9” 9.00 sft 18.00 sft Top of parapet wall (Rooms) 1 23’-10 ½” - 0’-9” 17.90 sft 17.90 sft 2 7’-3” - 0’-9” 5.43 sft 10.87 sft Total= 1186.95 sft
  92. 92. Deduction Windows 2 4’-0’ - 4’-0” 16.00 sft 32.00 sft Ventilators 2 2’-6” - 1’-6” 3.75 sft 7.50 sft Total= 39.50 sft Net Total= 1147.45 sft
  93. 93. ABSTRACT OF QUANTITIESABSTRACT OF QUANTITIES
  94. 94. 1- CALCULATIONS1- CALCULATIONS 1. Excavation in Medium soil Quantity from BOQ item No. 1 Output of one labourer working 8 hrs 04 labourers are required for 3 ½ days to excavate 1050 cft earth. = = 1024.52 cft 75 cft
  95. 95. 2. PCC (1:4:8) Quantity of BOQ item No.3 (Foundations) = 146.27 cft Quantity of BOQ item No.11 (Floors) = 142.07 cft Total = 288.34 cft Note: Dry material for 100 cft of cement concrete = 154 cft Materials (i) Cement=154x1x288.34/(100x13) = 34.15cft (ii) Sand=154x4x288.34/(100x13) = 136.62 cft (iii) Coarse aggregate =154x8x288.34/(100x13) = 273.25 cft
  96. 96. 3. Ist Class Burnt brick work in foundation in cement sand mortar (1:6) Quantity of BOQ item No.4 = 484.21 cft Note: Bricks for 100 cft of brick work = 1350 Nos. Dry mortar for 100 cft of brik work = 30 cft Material (i) Bricks=1350x484.21/100 = 6537 Nos. (ii) Cement=30x1x484.21/(7x100) = 20.75 cft (iii) Sand=30x6x484.21/(7x100) = 124.51cft
  97. 97. 4. 1 ½” thick PCC (1:2:4) in DPC including two coats of hot bitumen & 2 sheets of Polythene. Quantity of BOQ item No.5=55.50x0.125 = 6.93 cft Note: (i) Dry material for 100 cft of cement concrete = 154 cft (ii) Bitumen for 100 sft of DPC (first coat) = 15 Kg (iii) Bitumen for 100 sft of DPC (second coat) = 10 Kg Material (i) Cement=154x1x6.93/(100x7) = 1.52 cft (ii) Sand=154x2x6.93/(100x7) = 3.04 cft (iii) Coarse aggregate=154x4x6.93/(100x7) = 6.09 cft (iv) Bitumen =25x55.50/100 = 13.87 Kg (v) Polythene Sheet (2 x 55.5) = 111.0 sft
  98. 98. 5. Ist Class Burnt brick work in Super structure in cement sand mortar (1:4) Quantity of BOQ item No.6 = 743.17 cft Note: (i) Bricks for 100 cft of brick work = 1350 Nos. (ii) Dry mortar for 100 cft of brik work = 30 cft Material (i) Bricks=1350x743.17/100 = 10033 Nos. (ii) Cement=30x1x743.17/(5x100) = 44.59 cft (iii) Sand=30x4x747.13/(5x100) = 178.36 cft
  99. 99. 6. Reinforced cement concrete (1:2:4) Quantity of BOQ item No.7 = 226.39 cft Note: Dry material for 100 cft of cement concrete = 154 cft Materials (i) Cement=154x1x226.39/(100x7) = 49.80 cft (ii) Sand=154x2x226.39/(100x7) = 99.61 cft (iii) Coarse aggregate =154x4x226.39/(100x7) = 199.22 cft (Note: (iv) Mild steel round bars 1 Kg = 0.454 lbs) = = 1529 lbs 693.55 Kg
  100. 100. 7. Roof insulation Quantity of BOQ item No.9 = 430.72 sft Note: (i) Brick tiles for 100 sft roof insulation = 360 Nos. (ii) Dry mortar for 100 sft = 9.00 cft (iii) Bitumen for 100 sft of DPC (first coat) = 15 Kg (iv) Bitumen for 100 sft of DPC (second coat) = 10 Kg Material (i) 1 ½” thick brick tiles = 1551 Nos. (ii) Cement=9x1x430.72/(4x100) = 9.69 cft (iii) Sand=9x4x430.72/(4x100) = 29.07 cft (iv) Bitumen =430.72/100 = 107.68 Kg (v) Mud /Earth filling=430.72x0.42 = 180.90 cft (Vi) Polythene sheet (2 x 430.72) = 862 sft
  101. 101. 8. Sand under floors Quantity of BOQ item No.10 = 213.11 cft Material Sand = 213.11 cft 9. 1 ½” thick cement concrete (1:2:4) in floors Quantity of BOQ item No.12=457.80x0.125 = 57.23 cft Note: (i) 1 ½” = 0.125 ft (ii) Dry material for 100 cft of cement concrete = 154 cft Materials (i) Cement=154x1x57.23/(100x7) = 12.59 cft (ii) Sand=154x2x57.23/(100x7) = 25.18 cft (iii) Coarse aggregate =154x4x57.23/(100x7) = 50.36 cft
  102. 102. 10. 1/2” thick cement plaster in cement sand mortar (1:3) Quantity of BOQ item No.13 = 3197.07 sft Note: Dry mortar for 100 sft of ½” thick cement plaster = 6 cft Material (i) Cement=6x1x 3197.07/(4x100) = 47.96 cft (ii) Sand=6x3x 3197.07/(4x100) = 143.87 cft 11. Wood work in door, windows ventilators Quantity of BOQ item No.14 (i) Doors = 56.00 sft Quantity of BOQ item No.14 (ii) Windows = 63.00 sft Note: (i) Timber for 100 sft of Panelled Doors = 13 cft (ii) Timber for 100 sft of Glazed windows and Ventilators = 8 cft Material (i) Timber for doors =13x56/100 = 7.28 cft (ii) Timber for windows and Ventilators =8x63/100 = 5.04 cft Total = 13.32 cft
  103. 103. 12. White wash / Distemper Quantity of BOQ item No.16 = 1872.9 sft Note: Lime for 100 sft of white wash (one coat) = 1.00 Kg Material Lime for three coats=1x3x1872.9/100 = 56.24 Kg 13. Weather Shield Quantity of BOQ item No.17 = 1143.45 sft 14. Earth filling under floors Quantity of BOQ item No.2 = 230.87 cft Material Earth for filling = 230.87 cft
  104. 104. 2- SUMMARY2- SUMMARY S.No. Description of material Quantity 1. Cement (From 2,3,4,5,6,7,9,10) 220.68 cft or 177 Bags 2. Sand (From 2,3,4,5,6,7,9,10) 740.26 cft 3. Coarse aggregate (From 2,4,6,9) 528.92 cft 4. Mild steel round bars (item No: 6) 693.55 Kg 5 Burnt bricks 1st class (From 3,5) 16570 Nos. 6 1/2” thick Brick tiles (item No: 7) 1551 Nos. 7 Bitumen (From 4,7) 121.55 Kg 8 Polythene sheet (From 4,7) 973 sft 9. Timber (item No: 11) 13.32 cft 10. Lime (item No: 12) 56.24 Kg 11. Mud/Earth filling (From 7,13) 411.77 cft

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