Establishes a system of strength classes for general use in structural codes. As well as giving stiffness properties and density values for each class, also gives the rules for the allocation of timber populations. Applies to all softwood and hardwood timber for structural use.

UNI EN 338:1997

UNI EN 338:2009

ONORM EN 338:2003 - Identical

DIN EN 338 (2003-09) - Identical

BS EN 338:2003 - Identical

NEN EN 338:2003 - Identical

SN EN 338:2003 - Identical

SS EN 338 Ed. 2 (2003) - Identical

UNE EN 338:2003 - Identical

NBN EN 338:2003 - Identical

I.S. EN 338:2003 - Identical

NF EN 338:2003 - Identical

NS EN 338 Ed. 2 (2003) - Identical