Standard Roof Truss Span

The standard roof truss spacing is 2.

Standard roof truss span.

This makes the roof ready for decking or sheetrock. While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses. Alpine truss designs are engineered to meet specific span configuration and load conditions. The steeper the roof the more expensive the trusses get because the longer the boards get and the more roof area increases.

When making a selection below to narrow your results down each selection made will reload the page to display the desired results. 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. You can use sbca s span charts to roughly determine truss sizes available. This is the distance between trusses.

The distance between trusses. Click to add item 24 spreadweb residential roof truss 5 12 pitch 87 to the compare list. A few customers prefer installing the trusses every 16 on center because they believe this will be. Standard framing details for use in preliminary design.

This means that if you re in charge of repairing or installing roofing trusses you ll be expected to hold to these standards. A truss with the same pitch and heel on both sides and a peak at the center is called a common truss. Common or standard trusses are symmetrical and have standard four inch heels. There is a little misconception about truss spacing and strength.

8 10 foot 1 10 foot 1. The standard spacing is 2. 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.

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. You will also incur additional costs because it is much harder to deck and shingle a roof that is 12 12 pitch versus a 4 12 roof. The roof truss spacing standard is important because eighty percent of new homes are built with standard pre fabricated trusses. These steel joints are needed to support the overall truss.

The same thing is true for the bridge of the truss. Girder trusses are designed to carry additional loads other than standard roof loads. Almost all residential trusses use this spacing.