NBS specifications.
Pre-written NBS clauses for security doors, windows, and shopfronts. Paste into your spec, edit project specifics, move on.
NBS L20 (doors), L30 (windows), and K10 references for every major product line. Each clause pre-formatted for NBS Chorus and NBS Building, with material specs, certification ratings, and performance criteria filled in. Saves the half-hour of writing a security door spec from scratch.
UK-format specifications. NBS isn’t used in non-UK projects.
Clauses
Browse the library.
Sorted by most recently updated. New clauses added as product lines develop.
This library is being built.
We're populating it alongside the new product lines. In the meantime, if you need a specific file, email specify@fortengineering.co.uk and we'll send it within a working day.
Need a clause for an unusual spec?
Tell us what you need.
If your project needs a clause we haven’t pre-written – combined SR + fire rating, an unusual size class, or integration with an existing frame – email engineering with the project context. We’ll draft the clause and send it back, usually within a working day.