Grading Rules

Plywood production problems? The countermeasures you want to know are here! Guide: China’s plywood production is in full swing, but the quality of plywood on the market is mixed. Many small and medium-sized enterprises are lack of production experience and can not effectively control the problems in plywood production. To improve the quality of plywood, we should know the possible …

LVL Products: Standards EU and UK The UK has adopted the same EU standards for using plywood panels in construction and continues to accept the CE mark until January 2023. LVL is classified is two ways – for structural applications similar to glued laminated timber; or as a product for general construction in non-loadbearing situations. Structural (BS) EN 14374: Timber structures – Structural laminated veneer lumber …

UK and EU Standards for OSB The UK has adopted the same EU standards for using OSB in construction and continues to accept the CE mark until January 2023. OSB products must comply with the overall harmonised (EU) or designated (UK) standard for wood-based panels, (BS) EN 13986: 2004+A1 2015. The standard that classifies OSB: (BS) EN 300: Oriented Strand Boards (OSB) …

List of Individual Standards Relevant to Wood-based Panels The UK and EU follow the same principles for the standards listed below. For ease of use we have combined the titles. For the UK, the titles simply have ‘BS’ for (British Standard) added. When a standard has been reviewed and updated, that date is integrated into the standard title. When a …

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 …

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 …

Standards for US 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 …