Quality Standards

Regulations for Construction Products The original EU Construction Products Regulation (EU-CPR) set down greater legal responsibilities for manufacturers, importers and suppliers and made it mandatory for wood-based panels to be CE marked. The UK-CPR has adopted similar principles and will continue to recognise the CE mark until January 2023, when the UKCA comes into force. Declaration of Performance Manufacturers now …

Plywood Specific Applications, Performance Characteristics & Standards The standard that classifies plywood is (BS) EN 636. It gives the requirements for plywood for general purpose use and for structural (load bearing) applications in dry, humid and exterior conditions. It also gives a classification based on bending properties. Specifiers and builders: simply select the property you need, such as bending strength, from …

The UK has adopted the same EU standards for using plywood panels in construction and continues to accept the CE mark until January 2023. There are now two overall standards  – harmonised and designated – that define the panels’ performance characteristics and test methods for use in construction applications. Each currently follow the same principles. The harmonised (EU) or designated …

The National Structural Timber Specification (NSTS) refers to the use of structural timber wherever UK building regulations apply. A similar specification is already in place for steel and concrete. It is produced by the newly formed Timber Development UK. Access the latest version here. The NSTS provides guidance for those using the supplementary Project Specification for Structural Timber which is available …

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 …

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 …

(BS) EN 314-2: 1993 (confirmed in 2013) Plywood – Bond quality – Requirements Orignal source https://apawood-europe.org/official-guidelines-3/individual-standards/en-314-2/ This part of the standard specifies the requirements for bonding classes of veneer plywood according to their end uses.  It lists three classes of bond quality. Bond Class 1: Dry conditions ‒ interior applications with no risk of wetting. This is equivalent to a moisture content in …