<P> A bill of quantities (BOQ) is a document used in tendering in the construction industry / supplies in which materials, parts, and labor (and their costs) are itemized . It also (ideally) details the terms and conditions of the construction or repair contract and itemizes all work to enable a contractor to price the work for which he or she is bidding. The quantities may be measured in number, length, area, volume, weight or time . Preparing a bill of quantities requires that the design is complete and a specification has been prepared . The bill of quantities is issued to tenderers for them to prepare a price for carrying out the works . The bill of quantities assists tenderers in the calculation of construction costs for their tender, and, as it means all tendering contractors will be pricing the same quantities (rather than taking - off quantities from the drawings and specifications themselves), it also provides a fair and accurate system for tendering </P> <P> Bills of quantities are prepared by quantity surveyors and building estimators, and "Indeed the bill of quantities was the reason for the development of quantity surveying as a separate profession ." COBRA The international operations or trades used in construction . As the rates for materials and labour change due to inflation, these books are frequently republished...</P> <P> The practice historically of estimating building costs in this way arose from non-contractual measurements, taken off drawings to assist tenderers in quoting lump sum prices . </P> <P> There are different styles of bills of quantities, mainly the Elemental BOQ and Trade Bills . </P>

Difference between bill of material and bill of quantity