Independent testing for structural timber products to BS EN 408 and BS EN 338 for strength, stiffness, shear and bending for strength and performance.
We offer independent and UKAS-accredited testing to EN 408 for structural timber products. We also provide testing for the classification of structural performance in relation to EN 338 for strength graded timber, including:
- bending strength
- bending stiffness (modulus of elasticity)
- shear strength
- bearing strength
- compression strength
- moisture content and density
As with all established structural products, the performance characteristics of strength graded timber are verified on the basis of existing test standards. Strength graded timber is considered as a structural product as it can be CE marked.
The structural performance of strength graded timber is a measure of how the timber will contribute to the mechanical stability of a building typically as part of a floor, wall or roof system.
Strength graded timber is assigned to a strength class which contains a range of characteristics that are required by structural engineers. The most commonly available strength classes in the UK are C16 and C24 while TR26 is used for trussed rafters. Strength graded timber is used as framing and carcassing for floor joists, wall studs, columns, cut roofs and trussed rafters.