A structural design method benefitting both the designer and the end-user, grid systems have been used for generations in print design, architecture and urban planning to lay out and optimize spaces for readability and comprehension, wayfinding and navigation, utility and usability. As a framework for screen-based design, grids enable efficiencies in the planning, execution and presentation of UIs and content and imparts a refined aesthetic and sense of order improving perceived usability and intuitive behavior.