Ps1-09 Plywood. PS 1-09 Structural Plywood Form L870. PS 1-09 Rated Plywood PS 1 Rated Plywood Our plywood is manufactured with high-quality veneers of Doug Fir timber most of which is sourced from our own forestlands and is compliant with Voluntary Production Standard PS 1.
Also if my memory serves me correctly I believe the X stands for Exposure 1 not Exterior and CDX is not recommended for long-term exterior exposure. 20 Off Your Lowes Advantage Card Purchase. Patrick D Gallagher Director.
I think they talk about this stuff in the APA Plywood Design Spec referenced by Splitrings above.
Department of Commerce as a revision of PS 1-07 Structural Plywood 1 SCOPE 11 This Voluntary. Our BB Plyform is fully sanded on both sides and factory treated with a high quality release agent. It covers manufacture of such plywood from some 70 wood species and supersedes the Product Standard published in 2007. PS 1 Rated Plywood.