BOQ
Abbreviation for bill of quantities — the itemized list of scope quantities and unit rates used to price and administer a construction contract.
Definition
BOQ is the standard abbreviation for bill of quantities, the formal pricing document issued during construction tendering. A BOQ enumerates every measurable scope of work — concrete, masonry, drywall, electrical fixtures, mechanical equipment — with a quantity, unit of measure, and a column for the unit rate.
The BOQ format is widely used in the UK, the Commonwealth, the Middle East, and many international markets. It standardizes how contractors price work so that owners can compare bids on identical quantities.
How boq is used in estimating
A BOQ is the centerpiece of the estimating workflow on any project where it is required. The estimator receives the BOQ from the owner or quantity surveyor, prices each line by combining material, labor, equipment, and markup, and submits the priced BOQ as the bid. After award the BOQ is the document used to certify monthly progress payments and to price variation orders.
Generating a BOQ from scratch starts with the takeoff. The estimating team measures every quantity from the drawings, structures the lines according to the contract format (often CSI MasterFormat in North America or NRM in the UK), and applies the project pricing model. AI tools like BuildVision AI can produce the structured BOQ directly from drawings, saving days of manual entry.
When BOQs are required
BOQs are mandatory on most public-sector projects in countries that follow British contract conventions, on FIDIC international contracts, and on many large private projects globally. In the United States, BOQs appear on unit-price contracts and on infrastructure projects, while lump-sum building work tends to use a schedule of values instead. Always confirm the required pricing format in the bid documents before starting the takeoff.
Frequently asked questions
Q.What does BOQ stand for?
BOQ stands for bill of quantities. It is the contract-grade pricing document that lists each scope of work with its quantity, unit, and unit rate.
Q.Is BOQ used in the United States?
It is used on infrastructure, heavy civil, and unit-price contracts in the US, as well as on international projects. For domestic lump-sum building work, a schedule of values is more common.
Q.How is a BOQ priced?
Each line item is priced by combining direct material cost, direct labor cost, equipment cost, subcontractor cost, and a share of overhead and profit. The unit rate is entered against the listed quantity to produce the line total.
Q.Can a BOQ be amended during a project?
Yes — actual installed quantities are remeasured and the BOQ is adjusted accordingly. Variation orders add new line items at agreed rates, and final payment reconciles the priced quantities to what was actually built.
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