National structural steelwork specification for building construction. 7th Edition, 1st Revision
Publication 68/23
Document Status
Current
Supplement
Core Supplement
Series
Publication
Abstract
The Specification aligns with various Eurocode 3 standards and BS 5950-1 for structural steelwork design, suitable for a range of construction types up to steel grade S460, excluding S235 which is rarely used in the UK. It governs steelwork execution in accordance with BS EN 1090 standards, focusing on conformity, technical requirements, and cold-formed structures. Execution Class 2 is the baseline, with additional provisions for Class 3 detailed in annexes. The Specification outlines project specifications, material handling, fabrication, erection, and protective treatments. It should be incorporated into steelwork contracts through a Project Specification, which may include unique employer requirements.
History
Supersedes the 7th edition, 2020, from 2nd October 2023. First edition: March 1989. Second edition: October 1991. Third edition: July 1994, second impression March 1998. Fourth edition: May 2002. Fifth edition: January 2007. CE Marking version: October 2010. 6th edition: May 2017. 7th edition: September 2020. (RICW BCSA Publications 65/22 Annex J - Sustainability Specification, and 67/23 Corrigendum, first revision to the National structural steelwork specification 7th edition). 7th Edition, 1st Revision: April 2023
Subjects
- Coverings and surface finishes
- Waterproofing/damp proofing
- Felt/flexible sheets
Publisher History
The British Constructional Steelwork Association is the national organisation for the constructional steelwork industry. Publications cover technical, commercial, contractual, quality assurance and health & safety matters.
Information
NBS
NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.
Accuris
We connect trusted knowledge to customers' workflows – mitigating risk, increasing efficiency and accelerating innovation For more than 60 years, leading R&D and engineering-intensive organizations have relied on us to achieve on-time, on-budget delivery of complex projects and new products. We deliver an unparalleled combination of technical content and Artificial Intelligence (AI) technologies to surface answers from the vast universe of technical knowledge, both inside and outside the organization. In a single interface, we connect the dots between information scattered across many different sources, allowing technical professionals to make better, more informed decisions faster.