This technical bulletin is currently under review with a view to new guidance being published.

If using the current version please note the following:

  • Technical Bulletin 2: Guidelines for checking the Structural Design of Buildings has been withdrawn and replaced by Guidance Note 11 with the same title.

We would welcome any comments you have about the guidance that should be given to Certifiers on Certification of the Design of Timber Framed Structures. Please send comments to