Different Types of Roof Trusses
At Robinson Manufacturing Ltd we offer complete roof truss solutions and are experts in the design of different types of roof trusses. Our design team covers the UK, with trained and experienced designers working together from whichever one of our seven factory sites they are based at. Over the years, we have built a wealth of expertise to become a Centre of Excellence.
The type of roof truss required for a particular product is dependent on the building structure and our team of designers work with technical teams, architects and contractors to ensure the right fit for their project. With over 30 years experience in truss design, we are experts in creating innovative solutions which are both cost effective and utilise space.
Below is a summary of the most common roof trusses:
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Spanning up to 4.5 metres, the King Post truss is used primarily in house and garage construction.
Spanning up to 6 metres, Queen Post trusses are used mostly in domestic structures.
Spanning up to 11 metres, Fink trusses are the most commonly used shape and can easily accommodate a water tank.
With a large span of up to 16 metres, Double W trusses are used primarily in commercial buildings.
Spanning up to 8 metres, Howe Girder trusses are used as a support for other trusses or loose infill.
Sometimes referred to as an extended top chord, Raised Tie trusses allow a new roof structure to blend in with period properties. Other applications are to allow increased internal room height or as a design feature.
Also referred to as a Room-in-the-Roof, Attic trusses form the top storey of a dwelling. This is characterised by a central habitable area free of web members with large timber members elsewhere.
Although curved trusses are unique, they can be used effectively for barn conversions, as can be seen here.
Spanning up to 2.5 metres, 2/1 Mono trusses are used on hip ends and lean to rooves.
Spanning up to 4.5 metres, 2/2 Mono trusses are used on large span hip ends and spanning onto fire walls.
Spanning up to 6 metres, 3/2 Mono trusses are used back to back into central corridors.
Spanning up to 8 metres, 3/3/ Mono trusses are used on mono pitch rooves.