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.
EN 14250:2010 Referenced Document
EN 1310:1997 Round and sawn timber - Method of measurement of features
EN 1991-1-1:2002 Eurocode 1: Actions on structures - Part 1-1: General actions - Densities, self-weight and imposed loads for buildings
EN 1991-1-2:2002 Eurocode 1: Actions on structures - Part 1-2: General actions - Actions on structures exposed to fire*， 2024-04-19 Update
EN 335-1:2006 Durability of wood and wood- based products - Definition of use classes - Part 1: General
EN 335-2:2006 Durability of wood and wood-based products - Definition of use classes - Part 2: Application to solid wood
EN 336:2003 Structural timber - Sizes, permitted deviations
EN 350-2:1994 Durability of Wood and Wood-Based Products - Natural Durability of Solid Wood Part 2: Guide to Natural Durability and Treatability of Selected Wood Species of Importance in Europe
EN 844-3:1995 Round and sawn timber - Terminoloy - Part 3: General terms relating to sawn timber
EN 844-9:1997 Round and sawn timber - Terminology - Part 9: Terms relating to features of sawn timber
EN 14250:2010 history
2010EN 14250:2010 Timber structures - Product requirements for prefabricated structural members assembled with punched metal plate fasteners
2004EN 14250:2004 Timber structures - Product requirements for prefabricated structural members assembled with punched metal plate fasteners