This document gives guidance onThe selection of plywood for use inThe different use classes as defined in EN 335-1.The guidance given takes into accountThe natural durability classification for solid timber (see EN 350-2) together with other factors specific for plywood. It does not consider durability against chemico-physical factors, such as weathering, nor does it considerThe biological durability of the adhesive. Guidance on precautionary measures for use is also given.