CWC and the NLGA

wood logo final 303 – 409 Granville St.
Vancouver, BC V6C 1T2
Tel: 604-673-9100

For over 40 years, the National Lumber Grades Authority (NLGA) has been the organization responsible for writing, interpreting and maintaining Canadian lumber grading rules and standards.

The membership of NLGA consists of all the lumber manufacturers’ associations and independent grading agencies in Canada that have been accredited by the Canadian Lumber Standards Accreditation Board (CLSAB) as well as the American Lumber Standard (ALS) Board of Review.

For more information on the NLGA please visit their website at