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Standard grading rules for Canadian lumber

Publication Year

2022

Document Status

Current

Abstract

Grading rules to maintain a standard or measure of value between mills manufacturing the same or similar woods so that uniform qualities will be the result.

Document History

Supersedes the 2017 edition. Effective from December 2022. Approved by the Canadian Lumber Standards Accreditation Board and the American Lumber Standard Committee Board of Review. Includes Erratum No. 1 (effective March 21, 2023), Erratum No. 2 (effective May 18, 2023) and Erratum No. 3 (effective November 29, 2023).

Publisher Information

National Lumber Grades Authority

The National Lumber Grades Authority (NLGA) is responsible for issuance, publication, amendment and interpretation of Canadian lumber grading rules and standards.

409 Granville St
Suite 303
Vancouver
NLGA
Canada

Website: http://nlga.org/en/
Email: info@nlga.org
Tel: +1 604 673-9100