Here at Trading Roofing Supplies we only stock C24 graded timber to ensure we are offering good quality material for your build however, other grades are available on request so feel free to speak to the team and they will be sure to assist you.

Timber for use in load bearing situations is typically required to be graded to strength classes usually C16, C24 and TR26 in the UK (TR26 and C24 are a higher structure grade than C16).

Graded timber is generally kiln dried (moisture content is reduced to required levels in a kiln), although can also be wet graded (which is moisture content at ambient levels and not kiln dried).

It is increasingly being specified as regularised which means that the product has a machined finish, giving a regular consistent section size.