ÖNORM EN 12369-2

This European standard provides information on the characteristic values for use in designing structures incorporating wood-based panels. The characteristic values given are as defined in EN 1995-1-1. This standard includes the characteristic values of the mechanical properties for plywood complying with EN 636 in bending, tension, compression, panel shear and planar shear. EN 636 classifies bending properties into two sets of classes, one for stiffness and another for strength. Stiffness and strength in tension and compression are related to the same properties in bending. For shear properties, fixed values have been substituted by correlation to density. Where optimised values are needed, the characteristic values shall be determined directly by testing in accordance with EN 789 and EN 14358 or by combination of testing according to the latter two standards and calculation according to ENV 14272. This standard applies to panels complying with the three following conditions: - 5 layers or more and 6 mm and more; - the ratio of the cumulated thickness along one direction upon the cumulated thickness across the same direction shall not exceed 2,5; - wood species with a mean density greater than 350 kg/m3 and not exceeding 750 kg/m3.