- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 03 Sep 2020
Bill of quantities v Schedule of rates
The decision about whether to use a bill of quantities (BoQ) or a schedule of rates depends on the nature of the project as well as the chosen procurement route. Both can be used to obtain prices from contractors and for valuing variations.
A bill of quantities is a document prepared by the cost consultant (often a quantity surveyor) that provides project specific measured quantities of the items of work identified by the drawings and specifications in the tender documentation. It is issued to tenderers to help them prepare a price for carrying out the works. Typically a bill of quantities will be appropriate where a project has been designed in detail, and so the precise quantities required are known.
A schedule of rates is a list in a contract setting out the staff, labour and plant hire rates etc that a contractor will use for pricing cost reimbursable work. It does not contain any quantities for the specific work items and is typically used when the nature of work required is known but it cannot be quantified, or if continuity of programme cannot be determined.
 Related articles on Designing Buildings Wiki
Featured articles and news
A guide to daylight design for commercial buildings.
Two opposite approaches to cost estimating that can work together.
BSRIA reports on propsects for the US construction industry.
ECA research shows lack of preparation amongst survey respondents.
Smart mapping approaches for building better infrastructure.
The importance of emergency planning.
Eight forms of resource optimisation.
CIOB responds to Chancellor Sunak's announcement on jobs and the economy.
Revised guide to competition rules available.
Brick slip soffit systems and intricate brick features.
An innovative engineering approach could have had tragic consequence for NYC.
Some secrets behind how canals work.