What Is a Takeoff in Construction?
By Wyatt Cooper · Published · 3 min read
Key takeaways
- A takeoff measures quantities from the drawings: each, linear feet, square feet, cubic yards, tons.
- The estimate prices those quantities; a missed quantity in the takeoff is missed money in the bid.
- Takeoffs add waste and laps on top of the net measured quantity, and say so, so the number can be checked.
A takeoff (quantity takeoff) is the count and measurement of every item of work on the drawings: cubic yards of concrete, square feet of drywall, linear feet of pipe, each door and fixture. The estimator multiplies those quantities by unit costs to price the work, so a takeoff is the base of every bid built from the plans.
A small takeoff, worked
Partition type P3: 120 LF, 10 ft high, board both sides
- Wall area, one side
- 120 LF × 10 ft = 1,200 SF
- Board, both sides
- 1,200 SF × 2 = 2,400 SF
- Sheets (4 × 12 = 48 SF each)
- 2,400 ÷ 48 = 50 sheets
- Waste at 10%
- 5 sheets, for 55 sheets
- Studs at 16 in. on center
- 120 ft × 12 ÷ 16 = 90 spaces, plus 1 = 91 studs
Each line shows its arithmetic, so anyone can check it against the drawings. A real takeoff repeats this for every partition type, ceiling and soffit, then deducts large openings. See the drywall and framing trade guide for how those quantities become a bid.
Takeoff vs. estimate
The takeoff is quantities; the estimate is money. An estimate multiplies each quantity by a unit cost for labor, material and equipment, then adds general conditions, overhead and profit. Owners do the same work on their side: on federal construction, an independent government estimate is prepared "in as much detail as though the Government were competing for award" (FAR 36.203). Where the bid documents give estimated quantities for unit-priced items, your takeoff tells you whether the real quantity will land within the contract's band; the federal band is 15 percent (FAR 52.211-18).
A GC often has no takeoff of its own for a trade until bids arrive, and carries a plug number instead. A sub's takeoff becomes its proposal.
The bottom line
A takeoff is the measured quantity of every item on the drawings, the first number under every price in a bid.
Show the math, state the waste factor, and keep it by drawing and area so changes can be re-measured. Join the waitlist to try Conflo for bidding.
Sources
- FAR 36.203, Government estimate of construction costs — Acquisition.gov, U.S. General Services Administration. Read October 22, 2026.
- FAR 52.211-18, Variation in Estimated Quantity — Acquisition.gov, U.S. General Services Administration. Read October 22, 2026.
Questions
Is a takeoff the same as a material list?
Not quite. A material takeoff lists what to buy; a quantity takeoff measures the work, which also drives labor. Most trade estimators do both from the same measurements.
Should a takeoff include waste?
Measure net, then add waste as its own line with the percentage shown. That way a reviewer can see the real quantity and your allowance separately.
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