The construction takeoff knowledge base
How quantities are measured across every trade: the units, deduction rules, waste factors, and the published standards behind them. Cited, region-aware, and free.
Start here
The cross-cutting principles that apply to every takeoff.
Takeoff by trade
How to measure each trade, with the standards and regional rules that govern it.
Acoustical ceilings
Carpentry and framing
Concrete
Demolition
Doors, windows, and hardware
Drywall and plaster
Earthwork and excavation
Electrical
Fencing and railings
Fire sprinkler
Flooring
Glazing and curtain wall
Heavy civil infrastructure
HVAC
Insulation
Landscaping and irrigation
Low-voltage and structured cabling
Masonry
Millwork and casework
Painting and coatings
Paving and flatwork
Plumbing
Roofing
Site utilities
Specialties, equipment, and furnishings
Structural steel
Tile and stone
Waterproofing, cladding, and siding
Construction takeoff glossary
Every measurement term defined in one place, from contact area to waste factor, each linked to the guide that explains it.
Browse the glossary