The Trussed Rafter Association is the respected voice of the UK trussed rafter industry. TRA is committed to raising standards in the industry, with all Members having to meet TRA’s mandatory requirements for third-party supervised Quality Assurance and Professional Indemnity insurance helping to ensure quality in the design and manufacture of trussed rafters.
Timber Research and Development Association
TRADA is an internationally recognised centre of excellence on the specification and use of timber and wood products. TRADA's mission is to build markets for timber and wood-based products and increase sales in the UK. TRADA maintains active programmes of research and information.
UK Timber Frame Association
UKTFA is a manufacturer-based organisation whose members include large and small Timber Frame manufacturers.
Wolf Systems
Wolf assist CRT in providing a comprehensive roof engineering service which is always available for projects requiring specialist expertise. This is largely owing to its Wolf's advanced timber roof design, manufacturing and management software.
