Open Web Roof Truss Span Table

You can use sbca s span charts to roughly determine truss sizes available.

Open web roof truss span table.

Basic lumber design values are f 2000 psi f 1100 psi f 2000 psi e 1 800 000 psi duration of load 1 00. The maximum span is measured o c. Keep in mind that these tables are for estimations only. Tcll 40 psf tcll 80 psf tcll 125 psf truss spacing truss spacing truss spacing.

Of bearings and is based on uniformly loaded joists. The shapes and spans shown here represent only a fraction of the millions of designs produced by alpine engineers. 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. The minimum bearing length is 1 spans values in bold indicate that web stiffeners are required at the osb end panel.

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. Alpine truss designs are engineered to meet specific span configuration and load conditions. 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. Maximum deflection is limited by l 360 or l 480 under live load.

Spacing of trusses are center to center in inches. Span tables below illustrate common combinations of the multiple variables available. Redbuilt open web trusses offer a variety of solutions for a broad range of challenges. Floor truss span tables alpine engineered products 17 these allowable spans are based on nds 91.