(BS) EN 313-1: 1996 (confirmed in 2015) Plywood – Classification and Terminology – Classification This standard lists the three main classifications for plywood. General appearance According to their construction  veneer plywood, blockboard, laminboard or composites According to their form and shape Flat or moulded Principal characteristics According to their durability For use in dry, humid  or exterior conditions According to their …

(BS) EN 310: 1993 Wood-based panels: Determination of modulus of elasticity in bending and of bending strength This specifies a method of determining the apparent modulus of elasticity in flatwise bending and bending strength of wood-based panels of nominal thickness ≥ 3mm. The modulus of elasticity in bending and bending strength is determined by applying a load to the centre …

(BS) EN 300 : 2019 Oriented Strand Boards (OSB) – Definitions, classification and specifications This defines the terms, establishes a classification and specifies requirements for OSB.  The values appearing in this standard relate to the products properties but they are not characteristic values to be used in design calculations. See OSB Use Classes and durability issues   – this was …