Standard Distance Between Roof Trusses

The same concept holds true for roof trusses.

Standard distance between roof trusses.

Putting the trusses into place. The distance between trusses. Almost all residential trusses use this spacing. Once you ve calculated the number of trusses you will need you should purchase the lumber.

Span is the clear distance between the supports of an arch beam or roof truss. Rafter is the distance between the ridge or hip of the roof to the wall plate of the external wall. 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 standard spacing is 2.

There is a little misconception about truss spacing and strength. It is the vertical distance between the wall and the top of the ridges. I ve had roof truss manufacturers try to convince me it is impossible to place wood trusses at spacings of over every 4 feet. Their defense is our engineers will not allow us to.

This makes the roof ready for decking or sheetrock. A few customers prefer installing the trusses every 16 on center because they believe this will be stronger then every 2. So the space between rafters can be greater without reducing the maximum span. Common spacing for trusses on this type of building is often between 2 and 4 feet but trusses built with advanced designs may allow spacing as great as 8 or 12 feet.

These standards are as follows.