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Roof trusses

Monopitch truss

A monopitch (mono) truss has a single sloping top chord, forming a roof that falls in one direction only.

Also known as mono truss, monopitch truss, mono pitch truss, lean-to truss, single pitch truss

Monopitch trusses are right-angled triangles in outline. They are used for sheds, garages, cabins and lean-to extensions against an existing wall, and in pairs to create split-level or offset roofs.

The high end carries a vertical member, which bears on a wall or on a girder, and the web pattern is adapted to the span.

Related terms
Truss typesRoof trusses come in many shapes, such as fink, mono, attic, scissor and girder trusses, each suited to a different roof form, span or use of the roof space. Girder trussA girder truss is a strengthened, often multi-ply truss that carries the load of other trusses or of a point load. Scissor trussA scissor truss has a sloping bottom chord, so the ceiling underneath can follow the roof and form a vaulted room.
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