Engineered Structural Wood Products
Under the NAHB Research Center’s third-party Oriented Strand Board (OSB) Product
Certification program, products are tested to meet nationally-recognized
standards. Our certification mark represents the benchmark of quality and code
compliance that builders, code officials, and consumers recognize and trust.
Participating Mills
Third-Party OSB Product Certification – Participating Mills
The NAHB Research Center provides third-party quality assurance and product
certification to the following mills:
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Weyerhaeuser – Sutton, W.V. (Mill #001)
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Weyerhaeuser – Grayling, Mich. (Mill #002)
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Weyerhaeuser – Elkin, N.C. (Mill #003)
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Weyerhaeuser – Arcadia, La. (Mill #004)
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Weyerhaeuser – Hudson Bay, Canada (Mill #005)
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Weyerhaeuser – Wawa, Canada (Mill #006)
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Weyerhaeuser – Drayton Valley, Alberta, Canada (Mill #007)
Through periodic quality system auditing, mill inspection, and product testing
the NAHB Research Center verifies that these mills produce grade-stamped
product bearing the NAHB Research Center Certified logo that meets the
requirements of PS2 and HUD UM40c.
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