NEN EN 14081-1 : 2016

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Requirements
  5.1 Grading, general
  5.2 Visual strength grading
  5.3 Machine strength grading
  5.4 Durability against biological attack
  5.5 Reaction to fire
6 Evaluation of conformity
  6.1 General
  6.2 Initial type testing and assessment
  6.3 Factory production control (FPC)
7 Marking
  7.1 General
  7.2 Information on the product (except if omitted
       for aesthetic reasons)
  7.3 Information either on the product (except if
       omitted for aesthetic reasons) or in accompanying
       documentation
Annex A (normative) Requirements for strength reducing
                       characteristics for visual grading
                       standards
  A.1 Limitations for strength-reducing characteristics
  A.2 Limitations for geometrical characteristics
  A.3 Limitations for biological characteristics
  A.4 Other characteristics
Annex B (informative) Marking codes for single species
Annex C (normative) Reaction to fire: Euroclass without
                       the need for further testing
Annex ZA (informative) Clauses of this European Standard
                       addressing the provisions of the EU
                       Construction Products Directive
  ZA.1 Scope and relevant characteristics
  ZA.2 Procedure for attestation of conformity of strength
       graded structural timber with rectangular
       cross section
  ZA.3 Marking
Annex NA (informative) United Kingdom requirements for
                       structural timber
Bibliography

Defines requirements for strength graded structural timber with rectangular cross-sections either visual or machine graded, shaped by sawing, planning or other methods and with cross-sectional dimensions complying with EN 336 (referred to as structural timber in the following clauses).