https://apawood-europe.org/official-guidelines-3/individual-standards/en-636/ This gives the requirements for plywood for general purpose use and for structural (load bearing) applications in dry, humid and exterior conditions. It also gives a classification based on bending properties. Amendment 1 : 2015 makes the following modifications to EN 636 : 2012 a) The scope now clarifies that the standard includes overlaid and coated plywood, but it …

(BS) EN 314-2: 1993 (confirmed in 2013) https://apawood-europe.org/official-guidelines-3/individual-standards/en-314-2/ Plywood – Bond quality – Requirements This part of the standard specifies the requirements for bonding classes of veneer plywood according to their end uses.  It lists three classes of bond quality. Bond Class 1: Dry conditions ‒ interior applications with no risk of wetting. This is equivalent to a moisture content in the plywood …

We look at the different classes of plywood, class 1, 2 and 3, and explain the differences. Plywood undergoes strict testing on bonding and durability to prove that it is worthy of usage within the construction industry. There are 2 standards, known as “harmonised standards”, that work together to determine which plywoods can be used under different conditions: EN314-2 (bonding …