1. Conditions of contract
2. Technical Specifications
3. Bill of Quantities or BOQ
4. Contract Drawings
5. Form of contract
Note: Language for all the documents should be exact , so that, later on the meaninings may not be wrongly interpreted.
1. Conditions of ContractConditions of contract are classified into three categories.
i) General Conditions of contract
ii) Additional Conditions of the contractThese conditions are related to the type of project. Conditions left in general conditions of contract are specified in additional conditions of contract. These conditions generally differ from project to project and are mainly related with specifications to be used, ways of testing, start of work, and other relevant work.
iii) Special conditions of workThese include some information about the site and the work, provisions of facilities at the site, site office, availability of surveying instruments drawings and site order book (to note instructions from the engineer) at the site, sign boards, materials and machinery issued by the department, advances, and other related terms.
Note: all conditions or circumstances, which can give rise to a dispute later on, should be well settled in the contract agreement. These agreed solutions of various conditions become contract law.
The use of a particular standard like British, American, European, etc. helps considerably in this respect. It ensures the use of good quality materials complying with the latest requirements prepared by expert technical committees representing Users, Produces, Research workers and other interested. The practice is to use brief description in BOQ and to give more comprehensive and detailed information concerning the materials
and workmanship etc. in the specifications.
Technical specifications are usually separately mentioned for;
i) Civil works -- Different standards
ii) Water Supply, Sewerage and
Sanitary works ( called plumbing works for inside of the building) – Different standards
iii) Electrical installations ----WAPDA specifications
iv) Gas Works ----SUI Northern Gas (Limited Specifications)
3- Bill of Quantities
One of the primary functions of a BOQ is to provide a basis on which tenders can be obtained and when it is priced, it provides a comparison of various tenders received.
For a building, BOQs are given separately for each storey and separately for different types of works.
i) BOQ for civil works
ii) BOQ for public health engg. Works
iii) BOQ for electrical works
iv) BOQ for gas works
4- Contract DrawingsContract drawings illustrate the details and scope of the works to be executed under the contract. They must be prepared in sufficient details to enable the contractor to satisfactorily price the BOQ. The contract drawings will be subsequently used when executing the works and may be supplemental by further detailed drawings as the work proceeds. Full description and explanatory notes should be entered on the drawings to avoid any sort of confusion.
6. Form of Tender (Formal Agreement)
The contractor is generally asked to enter into a bond whereby he provides to sureties who are prepared to pay upto 10-15% of the contract price if the contract is not carried out satisfactorily or a bank guarantee.
Contract Documents Definition, parts, sample
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