Commission Delegated Regulation (EU) 2017/2293 of 3 August 2017 on the conditions for classification, without testing, of cross laminated timber products covered by the harmonised standard EN 16351 and laminated veneer lumber products covered by the harmonised standard EN 14374 with regard to their reaction to fire (Text with EEA relevance. )
Data as of 2026-07-04 · Compiled from an official source version. Later amendments or repeals may not be reflected; the official text prevails. · Read the official text ↗
Cross laminated timber products covered by the harmonised standard EN 16351 and laminated veneer lumber products covered by the harmonised standard EN 14374 which fulfil the conditions set out in the Annex shall be deemed to satisfy the classes of performance indicated in the Annex without testing.
This Regulation shall enter into force on the twentieth day following that of its publication in the Official Journal of the European Union .
ANNEX Table 1 Classes of reaction to fire performance for cross laminated timber products and laminated veneer lumber products for walls and ceilings Product ( 1 ) Product detail Minimum mean density ( 2 ) (kg/m 3 ) Minimum overall thickness (mm) Class ( 3 ) Cross laminated timber products covered by the harmonised standard EN 16351 Minimum layer thickness of 18 mm 350 54 D-s2, d0 ( 4 ) Laminated veneer lumber products covered by the harmonised standard EN 14374 Minimum veneer thickness of 3 mm 400 18 D-s2, d0 ( 4 ) Table 2 Classes of reaction to fire performance for cross laminated timber products and laminated veneer lumber products for floorings Product ( 5 ) Product detail Minimum mean density ( 6 ) (kg/m 3 ) Minimum overall thickness (mm) Class for floorings ( 7 ) Cross laminated timber products covered by the harmonised standard EN 16351 minimum layer thickness of 18 mm and with the surface layer made of pine 430 54 D FL -s1 ( 8 ) Cross laminated timber products covered by the harmonised standard EN 16351 minimum layer thickness of 18 mm and with the surface layer made of spruce 400 54 D FL -s1 ( 8 ) Laminated veneer lumber products covered by the harmonised standard EN 14374 with a minimum veneer thickness of 3 mm and with the surface layer made of pine 480 15 D FL -s1 ( 8 ) Laminated veneer lumber products covered by the harmonised standard EN 14374 with a minimum veneer thickness of 3 mm and with the surface layer made of pine 430 20 D FL -s1 ( 8 ) Laminated veneer lumber products covered by the harmonised standard EN 14374 with a minimum veneer thickness of 3 mm and with the surface layer made of spruce 400 15 D FL -s1 ( 8 ) ( 1 ) Applies to all species and glues covered by the product standards. ( 2 ) Conditioned in accordance with standard EN 13238. ( 3 ) Class as set out in Table 1 of the Annex to Delegated Regulation (EU) 2016/364. ( 4 ) Class valid for any substrate or air gap behind. ( 5 ) Applies also to steps of stairs. ( 6 ) Conditioned in accordance with standard EN 13238. ( 7 ) Class as set out in Table 2 of the Annex to Delegated Regulation (EU) 2016/364. ( 8 ) Class valid for any substrate or air gap behind.
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