Creating roofscapes with trussed rafters

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Trussed Rafters have become part of the modern building vocabulary. Around 95% of all new house roofs are constructed using trussed rafters as are an increasing proportion of roofs for nondomestic premises such as offices, retail outlets, hospital extensions, leisure developments etc.

This product Data Sheet has been produced to give some ideas on how trussed rafter construction may be adapted in order to provide a range of roof intersections within the overall roof structure.


  • Flat top hip
  • Typical 'T' intersection
  • Typical 'L' return
  • Overlaid hip
  • Dogleg intersection

Suggested Reading

Trussed raftersnavigation-arrow

Widely used for a range of building types, trussed rafters are an economical, versatile and straightforward solution to providing a roof over a building.


Trussed rafters are individually designed prefabricated structural components made from strength-graded timber members of the same thickness, joined together with punched metal plate connectors. Available...

21/12/2020 |  Wood Information Sheet  

Trussed rafters: the off-site product delivering health and safety best practicenavigation-arrow

Nick Boulton highlights the benefits of off-site manufactured products and the health and safety practices of Trussed Rafter Association members.


28/05/2019 |  Magazine Article  

Principles of pitched roof constructionnavigation-arrow

There are a number of ways to design and construct pitched roofs using timber. Traditionally, builders constructed them on site, cutting and fitting each piece to its neighbours. Following the Second World War, various forms of prefabricated truss were developed, with the intermediate rafters and purlins cut and fitted on...

14/09/2021 |  Wood Information Sheet