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BoQ may serve as:-
a) A breakdown of the tendered price, with no contractual status, but providing information for the selection from tenderers;
b) A estimate measure of the work for the tendered price, to be used to arrive at a revised contract price once the actual quantities of work carried out are measured. This is the remeasure form of contract.
c) A schedule of rates as the contract basis for valuing variations in the work.
d) A basis for measure of the value of work competed for interim payments.
Functions of bill of quantities is the quantity of manpower, materials and equipment to be used in any kind of works in construction or productions works
Bill of Quantities serves as a basis of detailed breakdown of work scope with unit rates
A bill of quantities is a document used in tendering process in which incluse the materials, parts, and labor with respect to their costs. It also 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.
Bill of Quantities serves as a basis of detailed breakdown of work scope, quantity and cost of labor and materials. In the BOQ this will the basis of contract agreement of the the Client and the Contractor's work description/ scope.
BoQ has two primary functions:
(1) Pre-contract:
BoQ assist contractor in the formulation of their tender.
(2) Post-contract:
BoQ assist in the valuing of progress payment and variation works. During post-contract stage BoQ will facilitate variation orders management by providing a sound, common basis for the valuation and assessment of variations.
The function of a BoQ can further be expanded in enabling the creation of price database which proof to be useful for future estimating and can be interrogated as a financial management tools in construction.
Though Boq seems to be somewhat important document within the construction industry.
For me a BoQ is to determine if a contractor has a correct basis for his quotation, but also to see if a time schedule is relevant.
