Specification
A specification is the written part of the construction documents that sets the required materials, standards, workmanship and testing, complementing the drawings.
A specification is the written part of the construction documents that sets the required materials, standards, workmanship and testing, complementing the drawings.
What specification means
A specification is the written description of quality: which materials, which standards, how installation is done, and how compliance is tested. Drawings show geometry and layout; the specification says what the thing must be made of and how well.
Specifications are commonly organised into numbered sections by trade or product type.
A plain example
A specification section for light steel framing might name the product standard, the coating requirement, fastener types and tolerances, and ask for specific submittals. The wording is the owner’s requirement; any phrase in a template is a prompt to be replaced by project-specific terms.
Why it matters
The specification is a contract document, so ambiguity becomes dispute. When drawings and specification conflict, the contract usually states which governs. Submittals and inspections are measured against it.
Common confusion
A specification should not be confused with a scope of work, which says what work is to be done and by whom, or a datasheet, which describes a product. Product standards come from bodies such as ASTM and ISO; cite the current edition and confirm with the engineer of record and the local authority.
Practical checklist
When reading a specification, a few habits prevent costly misunderstandings.
- Find the order of precedence clause that explains which document governs in a conflict.
- Check which edition of each referenced standard applies, and obtain that edition from its publisher.
- Note performance requirements separately from prescriptive product requirements.
- List required submittals, tests and inspections so they appear in the programme.
- Raise an RFI where the specification and drawings disagree instead of choosing quietly.
Related terms
Questions people ask
Which wins, drawings or specification?
The contract normally defines the order of precedence. Check it.
Who writes the specification?
The design team, often adapting a standard format to the project.
Does a specification cover price?
No. Quantities and prices live in the bill of quantities or estimate.
Sources and further reading
Have a project outline or drawings?
Organize your scope, then contact Digital Oro through its official channel. Availability, engineering, pricing and delivery terms need project-specific confirmation.
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