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 …