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 …

Plywood classes explained Timber & Joinery We look at the different classes of plywood, class 1, 2 and 3, and explain the differences. Plywood undergoes strict testing on bonding and durability to prove that it is worthy of usage within the construction industry.  There are 2 standards, known as “harmonised standards”, that work together to determine which plywoods can be …