Knowledge Centre

Information and guidance provided by industry experts and free to use.

Cross-Laminated Timber (CLT) 

Our experts on timber in construction are the Structural Timber Association (

Information on standards, regulations, strength classes and span tables, fixings, roofing, loft conversions and timber frame construction.

For more information call Bob Davis on 01259 272 140 or email

CPD for Architects & Designers

Building with wood

New CPD module under development

Coming Soon


This online CPD course introduces you to the UK edition of the Swedish Wood CLT Handbook. The Handbook has been updated and revised for the UK market in collaboration with Arup, Swedish suppliers of cross-laminated timber, and the industry body Swedish Wood.

Each section of this CPD begins with a short video overview of the Handbook chapter, followed by a link to the full document. In some sections we have also included a case study for you to review.

Online Technical Guidance

The Swedish Wood CLT Handbook

A new FREE online guide, the CLT Handbook is to help structural engineers and architects design structures using cross-laminated timber. Download PDF.

Moisture-proof CLT construction

A guide on how the correct approach to handling CLT in construction can avoid the pitfalls associated with poor weather and high moisture environments.

Guide to assessing CLT surface quality

This Guide to assessing CLT surface quality is intended to provide support for developers, project managers, architects, purchasers and others at the start of a project and for inspectors and contractors at the end.


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