Open Web Roof Truss Span Table

Floor truss span chart each individual floor truss design is unique based on multiple variables.

Open web roof truss span table.

Geometry loading spacing bearing conditions etc. Redbuilt open web trusses offer a variety of solutions for a broad range of challenges. Keep in mind that these tables are for estimations only. 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.

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. The spans are based on simple span joists. Of bearings and is based on uniformly loaded joists. Maximum deflection is limited by l 360 or l 480 under live load.

Roof floor truss manual 7 31 08 10 43 am page 12. The minimum bearing length is 1 spans values in bold indicate that web stiffeners are required at the osb end panel. Tcll 40 psf tcll 80 psf tcll 125 psf truss spacing truss spacing truss spacing. The versatility of the trimjoist is unmatched by any other pre engineered wood joist product.

The maximum span is measured o c. 72 5 0 mi ni m u m girder floor truss floor truss jacks a a bearing wall girder floor truss floor truss jacks bearing wall cantilevered floor truss two 2x rim joists 24 max. And parallel to floor truss span strongback lateral supports 24 max. Floor joist span use this table to determine the maximum lengths of floor joists based on species of lumber joist spacing and joist size.

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 shapes and spans shown here represent only a fraction of the millions of designs produced by alpine engineers. Span tables below illustrate common combinations of the multiple variables available. You can use sbca s span charts to roughly determine truss sizes available.

Alpine truss designs are engineered to meet specific span configuration and load conditions. 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. Floor truss span tables alpine engineered products 17 these allowable spans are based on nds 91. 05425 cold formed steel trusses roof truss spans every trussteel roof truss is a custom design based upon the unique load span bearing use and code criteria of a particular project.

Roof rafter span use this table to determine the maximum lengths of roof rafters based on species and grade of lumber spacing dimensions load and slope.