Open Web Roof Truss Span Table

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.

Open web roof truss span table.

The spans are based on simple span joists. Basic lumber design values are f 2000 psi f 1100 psi f 2000 psi e 1 800 000 psi duration of load 1 00. Maximum deflection is limited by l 360 or l 480 under live load. Geometry loading spacing bearing conditions etc.

Tcll 40 psf tcll 80 psf tcll 125 psf truss spacing truss spacing truss spacing. Of bearings and is based on uniformly loaded joists. 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. Keep in mind that these tables are for estimations only.

Spacing of trusses are center to center in inches. Floor truss span chart each individual floor truss design is unique based on multiple variables. Span tables below illustrate common combinations of the multiple variables available. Whether your project is for retail or office space a school multi family apartments condos assisted living facilities hotels and motels warehouses you name it an open floor plan is often a primary requirement.

Alpine truss designs are engineered to meet specific span configuration and load conditions. The maximum span is measured o c. The minimum bearing length is 1 spans values in bold indicate that web stiffeners are required at the osb end panel. You can use sbca s span charts to roughly determine truss sizes available.