Floor Truss Load Tables

Floor joists with l 360 deflection limits f 1 live load of 30 psf plus dead load of 10 psf.

Floor truss load tables.

With an evenly distributed live load of 30 psf which the tables show the floor is able to support the total weight on the floor would be about 3 360 pounds. Maximum deflection is limited by l 360 or l 480 under live load. Increasing the total weight on the floor to 4 480 pounds however results in a live load of 40 psf which is beyond the floor s load capacity. See all 10 articles floor performance.

Tcll top chord floor live load 2. You can use sbca s span charts to roughly determine truss sizes available. 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. Basic lumber design values are f 2000 psi f 1100 psi f 2000 psi e 1 800 000 psi duration of load 1 00.

Hese span tables for joists and rafters are calculated t on the basis of a series of modulus of elasticity e and bending design values f b. Live loadany temporary applied load to a floor truss chord. Can i attach a deck ledger to 1 1 8 or 1 1 4 trus joist rim board. Simplified span tables for southern pine lumber and glued laminated timber glulam headers beams and girders.

Typically roof live load is snow while floor live loads are furniture. Deck lateral load connection to a tji floor system. Tji multiple continuous spans. Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters.

Tcdl 10 psf and bcdl 5 psf 3. Live load l 480 total load l 360 5. Top and bottom chords braced by structural sheathing 6. Spans shown are in feet 4.

L d ratiothe ratio of the truss span l to its depth d both dimensions in inches. Non load bearing partition wall weight consideration. Garage floor design guidelines. Openings are to be located in the center of the span max opening width is 24 inches 7.

View size selection tables. Level returna lumber filler placed horizontally from the end of an overhang to the outside wall to form a soffit. Member of a truss. Floor truss span tables alpine engineered products 17 these allowable spans are based on nds 91.

Keep in mind that these tables are for estimations only. View joist rafter tables. Or l 360 l 480 ll deflection limits chords are 2 x 4 southern pine. Spacing of trusses are center to center in inches.

View allowable load tables.