CE marking of structural timber NS-EN 14081

CE marking of structural timber

CE marking of structural timber is based on the harmonised standard NS- EN 14081 “Timber structures – Strength graded structural timber with rectangular cross section”.

Requirements for certification

NS-EN 14081 states that in order to CE mark structural timber, conformity with system 2+ must be documented. This entails certification of the factory production control.

Before a certificate can be issued an initial inspection is performed, where the quality handbook and control routines (control of production equipment and timber) are assessed. Based on this inspection, the certificate is issued.

Continuous surveillance is performed minimum once a year for companies that produce visually graded structural timber, and twice a year for companies that produce machine graded structural timber. The inspection includes evaluation of quality documentation, evaluation of production control, registration of deviations and measures taken at deviations. If a company does not correct the deviations in a satisfactory manner, the certificate may be revoked.

Marking

Certified companies have the right to mark the structural timber with the CE mark. Companies that also are members of Norwegian Strength Grading Inspection Scheme (Norsk Trelastkontroll) can label the structural timber with the NS mark.