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  1. APA-Certified Manufacturer

Weyerhaeuser

APA Certification

This manufacturer participates in APA’s quality assurance program, with ongoing third-party inspection to verify its engineered wood products meet recognized industry standards and deliver consistent performance — built to meet the mark.

Engineered Wood Products Manufactured

Structural
  • Structural I
  • Sheathing & Rated Sheathing
  • Rated Sturd-I-Floor
  • Underlayment
Exterior Siding
  • APA 303 Siding
Concrete Form
  • Plyform
  • HDO Concrete Form
  • MDO Concrete Form
Specialty
  • Marine
  • MDO-General
  • Sanded
Custom & Other
  • Custom Products (i.e. V-Series)
Rated Sheathing (Sheathing)
Rated Sturd-I-Floor (Single-Floor)
Structural I
Radiant Barrier Panel

APA-Certified Plant Locations

Mill numbers correspond to the number shown in the APA trademark stamp on certified products.

Alberta

Edson, AB, Canada - Mill # 538 - OSB

Louisiana

Simsboro (Arcadia), LA - Mill # 539 - OSB

Michigan

Grayling, MI - Mill # 536 - OSB

Montana

Kalispell, MT - Mill # 347 - Plywood

North Carolina

Elkin, NC - Mill # 537 - OSB

Saskatchewan

Hudson Bay, SK, Canada - Mill # 533 - OSB

West Virginia

Heaters (Sutton), WV - Mill # 535 - OSB