- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 21 Aug 2018
Specifications are written documents that describe the materials and workmanship required for a development. They do not include cost, quantity or drawn information but need to be read alongside other contract documentation such as quantities, schedules and drawings.
Written information about materials and workmanship should not appear on drawings or in bills of quantities as this can result in contradictory specifications and can cause considerable confusion, instead they should refer to the appropriate clauses in the specification.
The first stage in the development of a specification is the preparation of an outline specification. An outline specification is a brief description of the main components to be used in construction. They should be described in sufficient detail to allow the cost consultant to prepare some approximate quantities.
Components might include:
- Cladding (including external windows and doors).
- Internal walls and partitions.
- Internal doors.
- Building services (including lighting, heating, ventilation and air conditioning, water supply and drainage and other special installations).
- Fixtures and fittings (such as sanitary fittings).
 Find out more
 Related articles on Designing Buildings Wiki
- Bills of quantities.
- Common Arrangement of Work Sections.
- Contract documentation.
- Cost consultant.
- Insulation specification.
- Output-based specification.
- Performance specification.
- Prescriptive specification.
- Procurement route.
- Production information.
- Project brief.
- Schedule of accommodation.
- Specification basics.
- Tender documentation.
Featured articles and news
What collaborative working achieves and how it can be put in place.
BSRIA publishes the 2019 edition of its small but concise annual databook.
Using QSAND to measure the performance of disaster response.
What U-values are, why they matter and how they are calculated.
The need to ensure that we plan for all aspects of our bio-economy
BSRIA calls on government to reach deeper into the causes of pollution.
George Demetri brings a whole new level of technical knowledge to Designing Buildings Wiki.
Quality professionals need to take an active role in driving the completion process forwards.
The innovations needed to move from rhetoric to realisation.
Creating a sense of place, with radically-low running costs and the highest comfort levels.
A conversation between David Mitchell and Caitlin DeSilvey.
A quick guide to brick sizes.
The Union Street development in Southwark was a passion, as well as a business endeavour.