Roof Truss Span Chart

The shapes and spans shown here represent only a fraction of the millions of designs produced by alpine engineers.

Roof truss span chart.

Floor truss span chart each individual floor truss design is unique based on multiple variables. The truss calculator will determine your roof trusses based on key inputs related to the pitch span and overhang of your roof. Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters. View joist rafter tables.

Alpine truss designs are engineered to meet specific span configuration and load conditions. Also available for the android os. This is based upon the span of the rafter horizontal span not total rafter length live and dead loads. Rafter span tables use these tables to determine lengths sizes and spacing of rafters based on a variety of factors such as species load grade spacing and pitch.

Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12. 1 spans shown in charts. Geometry loading spacing bearing conditions etc. Typical roof truss design spans general notes.

More roof calculators roof truss calculator how to cut rafters. Keep in mind that these tables are for estimations only. Visit the roof framing page for more information on cutting roof rafters and visit the roof pitch calculator for determining rafter lengths based on rise and run. 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.

The load span tables shown below demonstrate only a tiny subset of the possible combinations available with trussteel cfs roof trusses. Span calculator for wood joists and rafters also available for the android os. To size joists and rafters use the maximum span tables for southern yellow pine. 4 oc 25 5 0 5 psf truss member sizing no ceiling dimensional lumber required.

Every trussteel roof truss is a custom design based upon the unique load span bearing use and code criteria of a particular project. This rafter span calculator is species specific for douglas fir hemlock etc. You can use sbca s span charts to roughly determine truss sizes available.