What's on Your APA Grade Stamp?

Learn how to read an APA (American Plywood Association) grade stamp on OSB sheathing panels, and what info it conveys.

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What's On Your APA Grade Stamp? West Fraser Integrated, 56% OFF

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Trying To Figure Out If This Stamp On Plywood Shows, 59% OFF

Exterior And Exposure Ratings Explained West Fraser, 47% OFF

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