Standard Roof Truss Span

This is the distance between trusses.

Standard roof truss span.

The standard spacing is 2. The steeper the roof the more expensive the trusses get because the longer the boards get and the more roof area increases. Alpine truss designs are engineered to meet specific span configuration and load conditions. This makes the roof ready for decking or sheetrock.

The standard roof truss spacing is 2. This means that if you re in charge of repairing or installing roofing trusses you ll be expected to hold to these standards. The shapes and spans shown here represent only a fraction of the millions of designs produced by alpine engineers. These steel joints are needed to support the overall truss.

Total load psf duration factor live load psf roof type 55 1 15 40 snow shingle 55 1 15 30 snow tile 47 30 snow 40 20 snow 1 25 20. When making a selection below to narrow your results down each selection made will reload the page to display the desired results. Almost all residential trusses use this spacing. A truss with the same pitch and heel on both sides and a peak at the center is called a common truss.

The roof truss spacing standard is important because eighty percent of new homes are built with standard pre fabricated trusses. There is a little misconception about truss spacing and strength. Standard framing details for use in preliminary design. You can use sbca s span charts to roughly determine truss sizes available.

The more complex the truss framework is the greater quantity of these joints will be required. 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. Just as there are many types of roofs with many roof parts there are many different types of roof trusses this extensive article explains through a series of custom truss diagrams the different truss configurations you can use for various roofs. 8 10 foot 1 10 foot 1.

Girder trusses are designed to carry additional loads other than standard roof loads. The distance between trusses. Click to add item 24 spreadweb residential roof truss 5 12 pitch 87 to the compare list. Common or standard trusses are symmetrical and have standard four inch heels.

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. Finally the truss calculator will compute the best dimensional method to connect the pieces of the truss with steel joints and a bridge. While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses.