![]() ![]() WE/SG2 = Larch, Scotch Pine – Species group 2. WE/SG1 = Western European (including Britain) Sitka/Norway spruce, pine and Douglas fir – Species group 1. In order to aid users in identifying timber, a system was created in which the species and source code as well as other information about the timber is stamped onto the timber. The typical species, which are sourced either domestically or from overseas, include spruce, fir, pine, redwood, whitewood, and larch. In Ireland, softwood timber is used as structural timber in domestic builds. NSAI have available a full set of span tables. The span table for floor joist spans referred to in this section and other guidance are reproduced from findings of the NSAI Timber Standards Consultative Committee and reflect the requirements set out in Eurocode 5 and the Irish National Annex. 444: The use of structural timber in buildings. The NSAI are currently revising Irish Standard I.S. ![]() ![]() EN 1995, all conflicting national standards have been withdrawn. In Ireland, Eurocodes are published and made available by the National Standards Authority of Ireland (NSAI). A series of harmonised structural design codes for building and civil engineering exists across the European Union, I.S. EN 1995-1 2005: Design of timber structures – Part 1 or simply Eurocode 5 outlines guidelines that should be followed when designing timber structures and elements. ![]()
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