Section Contents

Latest Updates to European Standards

European standards are reviewed every five years.  See full list of  individual standards for plywood, OSB and LVL.

Highlights:
  • Four new construction standards have been introduced into the UK and Europe
  • Two new standards being developed
  • Four under review
  • Four reviewed and confirmed without change.
New Standards:

EN 350:2016 Durability of wood and wood-based products – Testing and classification of the durability to biological agents of wood and wood-based materials

EN 12460-3:2015 Wood-based panels – Determination of formaldehyde release – Gas analysis method. Replaces EN 717-2.

EN 12460-5:2015 Wood-based panels – Determination of formaldehyde release – Extraction method (called the perforator method). Replaces EN 120.

EN 16733:2015 Reaction to fire tests for building products – Determination of a building product’s propensity to undergo continuous smouldering. Relevant to all building products classified according the official fire classification standard, EN 13501-1.

Under review:

EN 594:1995 Timber structures – Test methods – Racking strength and stiffness of timber frame wall panels

EN 597:1995 Timber structures –Test methods – Soft body impact test of timber framed walls

EN 12369-2:2011 Wood-based panels – Characteristic values for structural design – Part 2 – Plywood

EN 13986:2004+A1:2015 Wood-based panels for use in construction – Characteristics, evaluation of conformity and marking.

Confirmed:

EN 313-1:1996 Plywood – Classification and terminology – Classification

EN 314-2:1993 Plywood – Bond quality – Requirements

EN 635-5:1999 Plywood – Classification by surface appearance – Part 5: Methods for measuring and expressing characteristics and defects.

New Standards under development:

FprEn 16755:2015 Durability of reaction to fire performance – Classes of fire retardant treated wood products in interior and exterior end use applications

  • Maintenance of ‘undiminished performance throughout the desired service life in the anticipated conditions of use’.
  • Applies to:
  • Wood treated during the production process with fire retardant products applied either by a penetration process/ or a superficial process such as with a film forming or intumescent retardant coating.
  • Fire retardant treated products that are coated with ordinary paint.
  • Not covered: mechanical properties and biological durability of fire retardant treated wood products.

EN 14374 Timber structures – Laminated veneer lumber (LVL) – Requirements

This is being merged with EN 14279 (referenced in EN 13986) to create a universal classification for structural and non-structural LVL. This will include:

  • Specific rules for LVL with cross band veneers
  • Test methods and definitions for strength and stiffness properties
  • Strength classes
  • Tolerance modifications
  • Included for the first time – guidance on resistance to fire and fire protection ability.