How to become a competent visual strength grader

By Engaged Expert Nick Clifford

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There are many benefits to employers who have a qualified grader on staff. Nick Clifford, Senior Timber Technical Consultant, outlines what visual strength grading is and gives an overview of the specialist training available from BM TRADA.


  • What is strength grading?
  • Strength-reducing features
  • Biological attack
  • Shrinkage
  • Qualification and assessment
  • Visual strength grading courses
  • Terminology
  • Species recognition
  • Examination and assessment

This article was originally written for the BM TRADA Timber Industry Yearbook 2022.

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