Roof Strut Spacing

These standards are as follows.

Roof strut spacing.

The trusses should be a little longer than the exact width to allow for overhang and you will need sufficient trusses to mount across the length. The same concept holds true for roof trusses. So the space between rafters can be greater without reducing the maximum span. Struts are generally more efficient the closer they are to the vertical.

To determine how many trusses to create you will first need to measure both the width and the length of the structure you are building. Typical roof truss spacing means that they are usually about 24 inches from centre which means at the centre of one truss there will be a two foot gap or twenty four inch gap until the centre of the next truss. Struts should be adequately supported over studs in timber walls. They should have anti slip blocks where necessary to prevent them sliding horizontally.

Struts must be either vertical perpendicular to the rafters or at an angle to the vertical which does not exceed 35 o.