the fundamentals of QUANTITY SURVEYING, exploring the Industry

1. CAPE PENINSULA UNIVERSITY OF TECHNOLOGY
Summarised by: Lizwi Nyandu
2014
Core Notes

2. INTRODUCTION TO THE QUANTITY SURVEYING
PROFESSIONAL AND THE BUILDING PROCESS.
 Quantity Surveyor is a competent person in the building industry who
works with all the financial related issues during the construction/civil
works, in a nutshell Quantity Surveyors are the CA’s of Engineering.
 Quantity Surveyors performs several task throughout the stages of the
project.
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3. What Services does the Quantity Surveyor provide?
 Prepare the initial budget before the fully detailed architectural
drawing is develops to check if the cost will not exceed the
budget.
 Prepare tender documents for pricing.
 Negotiation of tender sum with the “contractors”.
 Valuing the construction works that are executed on site.
 Assessing insurance claims.
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4.  Thus the QS provide various services during all the stages of
building project namely:
I. Pre-Tender
II. Tender
III. Post Tender
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5. PRE-TENDER STAGE
 The QS assists the Client to develop his wish-list into a brief.
 An Estimate sum is developed from the architectural sketched
drawings.
 Note at this stage construction drawings are not yet available
thus the will be no accuracy in costing of the Materials.
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6. TENDER STAGE
 QS prepares a BOQ from the full detailed plan and gather the
tender documentation.
 QS valuates the tender to make sure that the tenderer priced
correctly and accordingly with the work done on site and hand
over to the principal agent.
TENDER DOCUMENTATION
1. BOQ
2. Specifications
3. Tender Drawings
4. Tender Form( JBCC Principal Building Agreement Tender Form)
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7. POST TENDER STAGE
Pre- Contract
 QS valuates all the tenders which have been submitted to ensure
that all contractors have priced accordingly.
 QS formulates a tender report and submits to the principal agent
and assist the client to make a decision on which
contract/tenderer will be suitable for the project.
 Lastly the QS prepares a Contract documentation.
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8. Contract Stage
 A t this stage the QS is responsible for monthly valuations and
cost valuations and cost reporting.
 Contractor submits a claim to the QS for his work done.
 QS value the work and submits a valuation to the principal
agent.
 Principal agent issue out a certificate for the work confirming the
amount due to him.
 Contractor raises an invoice to the client based on the amount on
the certificate.
 Client pays the amount on the invoice and certificate on the
terms stated in the contract under the payment terms.
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9. Post contract
 QS formulates the final accounts for the Principal Contractor as
well as the Nominated and the selected amounts.
Finalising the Final accounts involves:
 External works are usually measured provisionally, thus at this
stage they are included in the BOQ in order to sum up the Total
Cost of the project.
 The pricing and approval of variations brought about by the site
instructions and revised drawings.
 Preliminaries Adjustments calculations.
 Issuing of the final valuation.
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11. MODEL & SUPPLIMENTARY
PREAMBLES.
 The Model Preambles for trade is published and recently by the
ASAQS .
 This book covers the workmanship and materials encountered in
various Projects.
 “By its very nature, this document is a “model” document and
one is designed to act as a basis upon which to build. It is
anticipated that it will be supplemented by a “supplementary
preamble”.
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12. PRELIMINARIES
1. What are Preliminaries?
 Preliminaries out lines the conditions under which the contract
will be administered, and describes all matters which may affect
the contractor’s stuff or equipment on the site as well as
execution of the works.
Namely:
 Insurances
 Site Offices/accommodation
 Water & Electricity Supply…..
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13. STANDARD SYSTEM OF
MEASURING BUILDING WORK
 It’s a reference book which is used by the contractors & QS’s to
reach consensus on a standard.
 “Bills of Quantities” are Prepared in accordance with the rules
laid down in the “Standard System”.
 The Standard System is divided into 25 different TRADES.
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14. Composition and content
 The measured works is however arranged accordingly.
1. Works is divided into trades.
2. With a specific trade there's logical arrangements:
a. Measured by mass(kg / Tons)
b. measured by Volume (m³ )
c. Arranged from the Cheapest to the most Expensive
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15. Net Measurements
 All the Quantities in the BOQ are Whole numbers.
 This actually means that all the numbers are rounded of to the
nearest number for example:
 12.34 » 12
 0.08 » 0
 Note that the second Quantity is rounded off into zero thus the
standard system implies another rule which is called the
Fractional Quantities.
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16. Fractional Quantities
 This occurs where the final measured quantity is very small.
 Using the Above principle will make these small quantities
disappear.
 thus in these kind of situation the quantities must be rounded
off into One decimal as far as the standard system is concerned.
 For example:
 0.28 » 0.3
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17. Provisional Quantities & Provisional Sums
 These are the Quantities that are not accurately be determined
the Tender Stage thus they are measured during the final stage
of the contract.
 Provisional sums are amounts of money that are inserted/
included in the BOQ by the QS and intended to cover for
specialist subcontractor work.
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18. Prime Cost Amounts & Contingency Sum
 P.C. Amounts are included in the BOQ inserted to establish an
allowance for the Supply only of a range quality
 Contingency Sum can be stated as the monetary amount which
covers for any unforeseen works cost.
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19. THANK YOU
GET THE
FUNDUMENTAL OF MEASURING.pptx
Email: nyandu.nyandu.lizwi@gmail.com
Facebook: Lizwi ISO 1900 Nyandu
www.cput.ac.za
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