Specification Resources

NBS specifications provide standardised, manufacturer-verified product data that integrates directly with your specification writing workflow. Combined with our BIM objects, you can specify, model, and document Rapid Access products from a single authoritative source — reducing errors and saving time on every project.

NBS Source integrated · BIM objects available · Free to access

Browse Resources

NBS specification clauses, BIM objects, and specification support resources for architects and specifiers.

NBS Source

Access Panels — NBS Specification

NBS specification clauses for the full range of Rapid Access access panels. Includes standard, fire-rated, acoustic, and specialist panel specifications with verified technical data.

NBS

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NBS Source

Riser Doors — NBS Specification

NBS specification clauses for single and double riser doors. Covers fire-rated configurations from 30 to 120 minutes, acoustic performance data, and dimensional specifications.

NBS

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NBS Source

Loft Hatches — NBS Specification

NBS specification clauses for fire-rated and non-fire-rated loft hatches. Includes insulated, drop-down, and hinged configurations with U-value and fire performance data.

NBS

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BIM Objects

Access Panels — BIM Objects

3D BIM objects for access panel ranges providing geometry, product data, and specification information. Compatible with Revit, ArchiCAD, and other BIM-compatible software.

RFA IFC

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BIM Objects

Riser Doors — BIM Objects

3D BIM objects for single and double riser door configurations. Includes frame geometry, door leaf detail, hinge positions, and fire-rated assembly information.

RFA IFC

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BIM Objects

Loft Hatches — BIM Objects

3D BIM objects for loft hatch products including ceiling-mounted geometry, hinge mechanisms, insulation layers, and fire seal details for specification accuracy.

RFA IFC

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Common Questions

Specification Resource FAQs

Quick answers about NBS specifications, BIM objects, and how to specify Rapid Access products.

What is NBS Source?

NBS Source is the UK's leading product specification platform, used by architects and specifiers to find, compare, and specify construction products. Rapid Access products are listed on NBS Source with verified technical data and specification clauses ready to drop into your project.

Are BIM objects available for Rapid Access products?

Yes. BIM objects are available for our core product ranges, providing 3D geometry, product data, and specification information for use in Revit, ArchiCAD, and other BIM-compatible software.

How do I specify Rapid Access products in my project?

The simplest route is through NBS Source, where you can browse products by type and performance, then export specification clauses directly into your NBS specification. Alternatively, contact our technical team for bespoke specification support.

Specification Resources