Parallel Chord Roof Truss Span Chart

Spans shown are in feet 4.

Parallel chord roof truss span chart.

Live load l 480 total load l 360 5. Tcll top chord floor live load 2. Trusses must be designed for any special loading such as concentrated loads. Roof truss span tables alpine engineered products 15 top chord 2x4 2x6 2x6 2x4 2x6 2x6 2x4 2x6 2x6 2x4 2x6 2x6 bottom chord 2x4 2x4 2x6 2x4 2x4 2x6 2x4 2x4 2x6 2x4 2x4 2x6 2 12 24 24 33 27 27 37 31 31 43 33 33 46 2 5 12 29 29 39 33 33 45 37 38 52 39 40 55 3 12 34 34 46 37 39 53 40 44 60 43 46 64 3 5 12 39 39 53 41 44 61 44 50 65 47 52 70.

The truss is a framework consisting of rafters posts and struts which supports your roof. 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. Center line chase 24 max. Bottom chord dead load 5 psf.

Openings are to be located in the center of the span max opening width is 24 inches 7. You can use sbca s span charts to roughly determine truss sizes available. 1 b t c. Other floor and roof loading conditions a variety of species and other lumber grades are available.

Spacing of trusses are center to center in inches. Top and bottom chords braced by structural sheathing 6. Keep in mind that these tables are for estimations only. Top chord dead load 10 psf.