Standard Roof Truss Span

These standards are as follows.

Standard roof truss span.

Common or standard trusses are symmetrical and have standard four inch heels. Trusses with an asterisk that exceed 14 in height may be shipped in two pieces. You can use sbca s span charts to roughly determine truss sizes available. Girder trusses are designed to carry additional loads other than standard roof loads.

While this can be true it is not always accurate unless in some high stress situations. Included are a series of representative roof truss span tables that will give you an idea of the truss spans available for a particular load condition load duration lumber type and truss configuration. There is a little misconception about truss spacing and strength. A truss with the same pitch and heel on both sides and a peak at the center is called a common truss.

Although the standard spacing of roof trusses may be the same as that of rafters with 24 inch spacing being a common option the design of a truss may allow for the use of a lower grade of lumber than would be required for rafters with comparable spacing and span. The standard spacing is 2. To achieve maximum indicated spans trusses may require six or more panels. Contact your localalpine trussmanufacturerorofficeformoreinformation.

Mono used where the roof is required to. 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. The standard roof truss spacing is 2. Bt b tc 6 6 common truss configurations for the most widely designed roof shapes.

While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses. Standard framing details for use in preliminary design. Almost all residential trusses use this spacing. There is a misconception that spacing trusses every 16 on center is better because it will be strong than the average 2.

The distance between trusses. A few customers prefer installing the trusses every 16 on center because they believe this will be stronger then every 2. Metal roofs and pole buildings.