Depth Of Residential Floor Truss Spanning 25 0

Span tables below illustrate common combinations of the multiple variables available.

Depth of residential floor truss spanning 25 0. 2 strongback bracing is not considered. 2 grade of douglas fir are indicated below. Maximum floor joist span for no. 3 assumes composite action with a single layer of 3 4 wood sheathing glued and nailed or screwed.

Alpine truss designs are engineered to meet specific span configuration and load conditions. Live load is weight of furniture wind snow and more. 1 bearing size varies and is determined by loading conditions truss span and truss spacing. The shapes and spans shown here represent only a fraction of the millions of designs produced by alpine engineers.

Geometry loading spacing bearing conditions etc. 1 in 25 4 mm. Maximum deflection is limited by l 360 or l 480 under live load. Tcll 40 psf tcll 80 psf tcll 125 psf truss spacing truss spacing truss spacing.

1 ft 0 3048 m. 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. Floor truss span chart each individual floor truss design is unique based on multiple variables. 4 spans are clear.

Dead load weight of structure and fixed loads 10 lbs ft 2. Floor truss span tables alpine engineered products 17 these allowable spans are based on nds 91. True floor joist span calculations can only be made by a structural engineer or contractor. Live load 30 lbs ft 2 1436 n m 2.