How to become a competent visual strength grader


By Engaged Expert

Nick Clifford

More content from this author

Learn about our Engaged Experts

Nick is a senior technical consultant providing expertise in assessing the condition of timber structures, flooring, cladding and decking for the timber consultancy team.

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.

Download Here

Find related Resources