- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 04 Sep 2020
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).
 Related articles on Designing Buildings Wiki
- Bills of quantities.
- Contract documentation.
- Final specifications.
- 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
Gaining green support from the carbon giants.
Medieval passageways with spiritual, transport and economic purposes.
Organisation receives accreditation from Investors in People.
Click the button to subscribe.
Communicating the right information at the right time.
Materials can take on different properties to control heat and glare.
Challenges in the construction sector and beyond.
Exploring brick and timber construction techniques.
On wheels or on platforms, micro dwellings are popping up everywhere.
Landlords must now comply with new repair regulations.
You can add articles and help improve knowledge in the construction industry.
Ayo Sokale explains the struggles of being neurodiverse.
Communities, heritage and architecture. Book review.
The voluntary sector continues to shape the debate.