1 Scope
This European Standard specifies material, product and documentation requirements
for prefabricated structural members (e.g. trusses for roofs, walls and floors, frames,
composite beams and girders) for use in buildings made from solid structural timber
according to EN 14081‑1 with or without finger joints assembled with punched metal plate fasteners.
This document is valid for trusses with lengths up to 35 m and for other prefabricated
structural members with spans up to 12 m.
The standard also covers tests and/or calculation methods to carry out the evaluation
of conformity, requirements for the marking of these members, and external conditions
(service class 3 in accordance with EN 1995‑1‑1 or use classes 3, 4 and 5 in accordance with EN 335‑1).
As regards resistance to biological organisms, this standard covers prefabricated
structural members manufactured from either untreated timber or timber treated to
improve its natural durability.
This standard does not cover prefabricated timber structural members intended to be
used in constructions under predominantly dynamic loads (e.g. bridges) or for use
in unprotected external conditions (i.e. use class 3 in accordance with EN 335‑1).
Furthermore, it does not cover members treated to improve their fire performance.