Quantity Takeoff

Quantity takeoff is the process of extracting measurable quantities from construction drawings and project documents so they can be priced in an estimate.

A quantity takeoff may include counts, lengths, areas, volumes, weights, or assemblies. The exact quantities depend on the trade. Electrical estimators may count fixtures and conduit runs. Mechanical estimators may measure ductwork. Concrete estimators may calculate cubic yards. Drywall estimators may calculate square footage and framing quantities.

Quantity takeoff is different from pricing. Takeoff answers the question: “How much work is there?” Estimating answers: “What will it cost?”

Good quantity takeoff requires accurate drawings, correct scale, trade knowledge, and careful review of specifications and addenda.