Grade Stamp Not Recognized by National Building Code

The grade stamp shown below was recently observed in Quebec.

This grade stamp is from a CLSAB Accredited Agency; however, the grade stamp is not valid for structural use in Canada as:

  • the National Building Code of Canada has no recognized design values for SPF-S lumber, and
  • it does not contain a grading rule approved by the CLSAB such as the NLGA.

Questions about this matter can be directed to Chuck Dentelbeck, President & CEO, Canadian Building Associations and Officials: