Ontario Lumber Manufacturers’ Agency

The Ontario Lumber Manufacturers’ Agency (OLMA) is an independently owned agency, CLSAB-accredited lumber grading agency, offering lumber grading and/or grade stamping services to licensed facilities and individuals.

244 Viau Road
Noelville, ON P0M 2N0
Tel: 705-898-1036
Web: www.olma.ca

The January 21, 2011 Accreditation Agreement with OLMA recognizes them to supervise and grade stamp for each of the following classes of accreditation:

  1. CLSAB has accredited OLMA to supervise and grade stamp for each of the following classes of accreditation in accordance with CSA-O141 and ISO/IEC-17065:1.

    1. Visually Graded Lumber
      1. in accordance with CSA-O141 (May 23, 2023), CLSAB Regulations (October 23, 2024) and the NLGA Standard Grading Rules for Canadian Lumber (2025)
    2. Agency Certified Lumber
      1. in accordance with CSA-O141 (May 23, 2023), CLSAB Regulations (October 23, 2024) and the NLGA Standard Grading Rules for Canadian Lumber (2025)
    3. Fingerjoined Lumber
      1. in accordance with NLGA Special Products Standard for Fingerjoined “Vertical Stud Use Only” Lumber (SPS 3 – March 2023)
    4. Machine-Graded Lumber (MSR/MEL)
      1. in accordance with NLGA Special Products Standard for Machine Graded Lumber (SPS 2 – February 2024).
    5. CE Marking
      1. in accordance with the MPA-CLSAB Agreement (October 17, 2022)

2. CLSAB has accredited OLMA to supervise and mark for the following class of accreditation in accordance with CSA-O141 and the CFIA-CLSAB Agreement:

    1. Canadian Heat Treated Wood Products Certification Program
      1. in accordance with the CFIA-CLSAB Agreement (October 31, 2014)