PS 2-18  – the US Performance Standard for Wood Structural Panels PS 2-18 is a performance-based standard establishes structural criteria for assessing the acceptability of plywood, OSB and composite panels for load bearing sheathing applications in construction such as floors, walls and roofs. It covers performance requirements, adhesive bond requirements, panel construction and workmanship, dimensions and tolerances, marking and moisture content. …

US Voluntary Product Standard PS 1-19 Structural Plywood PS 1-19 is the updated product standard covering the requirements for American plywood intended for structural (loadbearing) use. Download here. It includes a quality certification programme for APA (and other qualified testing agencies) to inspect, sample and test plywood panels to ensure factory production control at each mill is functioning correctly. The standard details …

US Standards for Wood-Based Panels US Standards for APA Trademarked Panels There are two product standards covering the manufacture of US wood-based panel products: US Voluntary Product Standard PS1-19.US Product Standard PS2-18.APA-trademarked plywood panels are covered by PS 1-19 and PS 2-18.APA OSB panels are manufactured to US PS 2-18. For more technical information on APA products, click here. APA also has its own Performance-Rated Panel Standard – PRP 108.  This …