Specification & BQ for Building Works 24

Specification is one of main doc required in tender document and contract document. This spec doc will help QS and Contractor to read together with Bill of Quantities.

1. LECTURE – 03 SPECIFICATIONS & BILL OF QUANTITIES QSV1201 QUANTITY SURVEYING 1.

2. SPECIFICATIONS Specifications are written documents that describe the materials and workmanship required for development.  “Specifications” is a general term applying to all directions, provisions, and requirements pertaining to the performance of the work and payment for the work. DEFINITION.

3. SPECIFICATIONS They do not include cost, quantity, or drawn information, and so need to be read alongside other contract documentation such as quantities, schedules, and drawings. Specifications vary considerably depending on the stage to which the design has been developed when the project is tendered, Ranging from performance specifications (open specifications) that require further design work to be carried out by the contractor to prescriptive specifications (closed specification) where the design is already complete and no choices are left to the contractor. Specifications should be structured according to work packages mirroring the separation of the works into sub-contracts. CHARACTERISTIC

4. SPECIFICATIONS Give the client more certainty about the end product when they make their final investment decision (i.e. when they appoint the contractor). Gives the contractor more scope to innovate, and adopt cost effective methods of work, potentially offering better value for money. To verify standards of products and workmanship by testing, inspection, mock-ups and samples, and documentation such as manufacturers’ certificates. PURPOSE

5. CONTENT OF SPECIFICATIONS

6. SAMPLE OF SPECIFICATIONS

7. SAMPLE OF SPECIFICATIONS

8. BILL OF QUANTITY (BQ) A  Bill of Quantities  (BQ) is a document used in tendering in the construction industry in which materials, parts, and labour (and their costs) are itemized. DEFINITION.

9. To provide sufficient information on the quantities of Works to be performed to enable bids to be prepared efficiently and accurately; and, when a contract has been entered into To provide a priced Bill of Quantities for use in the periodic valuation of works executed. To distinguish between the different classes of works, or between works of the same nature carried out in different locations or in other circumstances The large data bank of information contained in the Bill of Quantities can be used in many ways to help the post-contract control of a project. To provide a very strong basis for the financial administration of the contract. IMPORTANCE OF BQ* BILL OF QUANTITY (BQ)