About Trussed Rafter Association
The Trussed Rafter Association represents over 65% of the trussed rafter and metal web joist industry in the UK and Ireland.
The Trussed Rafter Association (TRA) represents over 65% of the trussed rafter and metal web joist industry in the UK and Ireland. Members include the principal manufacturers of trussed rafters, metal web joists, suppliers and professionals involved in roof truss and engineered wood floor joist design and manufacture.
The TRA offers advice and guidance on technical issues, training and health and safety. It collaborates with key organisations in the housebuilding industry to raise standards and to advise housebuilders on trussed rafters and related products.
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BIM Directory
[edit] Building Information Modelling (BIM)
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Industry Foundation Classes (IFC)