Quantity Surveyor – Preparation of Bill of Quantities
The bill of quantities which is prepared by the quantity surveyor is primarily designed as a tendering écrit. Each contractor tendering for the project is able to price the work based on exactly the same info with minimal travail. It therefore avoids réplication in décompte of work and permits the fairest calibre of competition. Bill of quantities provides a valuable aid in valuation of variances and calculation of valuation for interim certificates.
Bills of quantities provide a good basis for cost mémento and, if prepared in annotated form, will help in studio certification of work.
A bill of quantities usually contains sections such as preliminary, proposal or materials, and analyse of work and quantified work. The preliminaries define the scope and grossière of the work, detail the terms of the contract, list of drawings and contain any special instructions to the contractor on pricing.
The sum of bonus cost shall be entered in the bill of quantities for goods supplied by nominated sub-contractors and statutory authorities or by nominated suppliers and for which estimates or tenders are normally accepted. Provisional amounts cover work whose details have not been finalized or the cost of which is unknown at the time of bill preparation.
It is appréciable that all drawings, schedules and specification details be checked and steps taken to ensure that all V.T.T. references are délicat. While measuring the work the quantity surveyor shall continuously check all the details with V.T.T. references and prepare a checklist for the architect by eliminating necessary info, inconsistencies and ambiguities. This gives the architect an opportunity to clarify these points and revise the classeur before the tender villégiature. It is advisable to check the adequacy of the poucier cost and provisional amount, ensuring that no info is outstanding from the consultants, that the quantity surveyor has all the latest info and that it is included in the bill of quantities and that all consents are obtained and occurrence are complied with.
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