This European Standard gives settings, derived according to the requirements given in EN 14081-2,
for various combinations of strength classes or grades, grading machines and species from particular
sources of growth. These settings are only applicable to timber from the sources indicated in the tables.
BS EN 14081-4:2009 Referenced Document
EN 14081-1:2005 Timber structures - Strength graded structural timber with rectangular cross section - Part 1: General requirements (Incorporates Amendment A1: 2011)
EN 14081-2:2005 Timber structures - Strength graded structural timber with rectangular cross section - Part 2: Machine grading; additional requirements for initial type testing
EN 336 Structural timber - Sizes, permitted deviations*, 2024-04-19 Update
BS EN 14081-4:2009 history
2016BS EN 14081-1:2016 Timber structures. Strength graded structural timber with rectangular cross section. General requirements
2009BS EN 14081-4:2009 Timber structures - Strength graded structural timber with rectangular cross section - Part 4:Machine grading - Grading machine settings for machine controlled systems
2006BS EN 14081-4:2005 Timber structures — Strength graded structural timber with rectangular cross section — Part 4: Machine grading — Grading machine settings for machine controlled systems