Parallel Chord Roof Truss Span Chart

Center line chase 24 max.

Parallel chord roof truss span chart.

Top chord dead load 10 psf. You can use sbca s span charts to roughly determine truss sizes available. Top and bottom chords braced by structural sheathing 6. Strongback splicing at change of span type 2 bracing unit 70 x 35 block fixed to msj with 2 75mm 3 05ø nails to top chord and bottom chord multigrip strongback strongback fix bracing panel to vertical webs with 2 30mm x 2 8ø nails fix trimmer to wall top plate with 3 75mm x 3 05ø nails 7 0 mm structural plywood or equivalent masonite fixed.

Tcll top chord floor live load 2. 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. Live load l 480 total load l 360 5. Trusses must be designed for any special loading such as concentrated loads.

Bottom chord dead load 5 psf. The truss is a framework consisting of rafters posts and struts which supports your roof. 1 b t c. Spacing of trusses are center to center in inches.

Keep in mind that these tables are for estimations only. Tcdl 10 psf and bcdl 5 psf 3. Spans shown are in feet 4. Other floor and roof loading conditions a variety of species and other lumber grades are available.