QUANTITY TAKEOFF
Quantity takeoff, is a crucial process in construction and project management that involves estimating and quantifying the materials, labor, and costs required to complete a construction project.
It is typically considered a subset of quantity surveying (QS) which is a broader field that encompasses various aspects of cost management, contract administration, and financial control in construction projects
The goal of a quantity takeoff is to produce a comprehensive list of all the elements needed for a project, which serves as the foundation for various project management tasks, including budgeting, procurement, scheduling, and project planning.
OUR METHODOLOGY
Review Project Documentation
- Understand the scope of work, construction methods, and project requirements
- Gather and review architectural and engineering drawings, specifications, technical data and any other relevant documentation
Work Breakdown Structure (WBS)
- Create a detailed Work Breakdown Structure that breaks the project down into smaller, manageable components or work packages.
- Develop a Cost-Coding System for these work packages and assign a unique identifier to each work package which will be then used in scheduling and cost estimation activities (as resource or cost item names)
Measurement and Quantification
- Identify and list all construction elements, components, and materials that need to be quantified from the design documentation
- Determine appropriate measurement units for each work item (e.g.,tons,cubic meters, square feet, cubic yards, linear feet).
- For Material Takeoff -Extract measurements directly from the project drawings, such as lengths, areas, volumes, or counts of materials and components.
- Take into account any waste or offcuts when calculating material quantities.
- For Labor / Equipment Takeoff -Determine the hours, days, or labor/eqpmt quantities required to complete each work item in compliance with the industry norms for Labor
- Consider including contingencies or allowances in the quantities to account for unexpected variations or changes in the project. Contingencies are typically expressed as a percentage of the estimated quantities and are added to the total.
Data Compilation & Documentation
- Compile the quantified data into a detailed list or spreadsheet format.
- Document the quantity takeoff results in a Bill of Quantities (BOQ) or a Quantity Survey report organized according to trade categories.
- Include descriptions, quantities, units of measurement, and any relevant notes.
- Share the BoQ with relevant project stakeholders, including the client and contractors