Current
Core Supplement
Wood Information Sheet
An explanation of terms describing timbers and their properties; covering the structure of wood, converting logs into timber, moisture content, durability, chemical resistance, fire performance, grading and strength characteristics.
June 2020 edition, with minor corrections. Supersedes the April 2016 edition. First published 1991; revised 2003, 2012, 2016 and 2020.
BM TRADA originates during the 1930s when a forerunner of what later became the Timber Research and Development Association (TRADA) was set up to promote the use of wood in construction. Their publishing programme delivers an extensive range of timber information - Eurocode 5 guidance, span tables, Wood Information Sheets and technical manuals on timber structures, characteristics, performance aspects such as fire and durability, and common applications.
NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.
We connect trusted knowledge to customers' workflows – mitigating risk, increasing efficiency and accelerating innovation For more than 60 years, leading R&D and engineering-intensive organizations have relied on us to achieve on-time, on-budget delivery of complex projects and new products. We deliver an unparalleled combination of technical content and Artificial Intelligence (AI) technologies to surface answers from the vast universe of technical knowledge, both inside and outside the organization. In a single interface, we connect the dots between information scattered across many different sources, allowing technical professionals to make better, more informed decisions faster.