Why suppliers do takeoffs
A supplier wants the material order. A fast, correct quote makes it easy for a contractor to use that supplier's price. Lighting, door hardware, plumbing fixtures, lumber and athletic equipment are often quoted this way. The takeoff is a sales service, and it is usually free.
How a supplier takeoff works
- The supplier's quotations staff get the plans and the spec section.
- They read the schedule and the spec for their product lines.
- They count the items they sell.
- They match each item to a product, or offer an equal.
- They send a quote with quantities, a lump price or unit prices, and notes.
What a supplier quote does not cover
- Items the supplier does not sell.
- Installation labor, unless the dealer also installs.
- Field conditions and site access.
- Scope from other spec sections that touches the same work.
- Later addenda, unless the quote lists them.
- Freight, tax and unloading, unless the quote says so.
How a contractor should use one
Use the supplier's count as a check, not as your takeoff. Do your own count, then compare. When the numbers differ, find out who is right before the bid. Read the quote's notes. Check which manufacturer is quoted and whether the spec accepts it. Check the addenda listed.
Who owns a mistake
A supplier's quote usually says the quantities are for the contractor to verify. Your contract with the GC is for the scope in the documents. It is not for the supplier's list. If the supplier's count is short, the contractor usually pays for the shortage. Read the terms on the quote.
Some dealers both supply and install. They bid to the GC as a subcontractor. Their takeoff then carries the full risk of the spec section, the same as any sub. A dealer in that role needs to read the whole section, not only the product schedule.
Takeoff Tool is AI takeoff software for specialty contractors. The live trade today is gym and athletic equipment.
Bidding and estimating · Updated 11 Nov 2026