Floor Truss Load Tables

L d ratiothe ratio of the truss span l to its depth d both dimensions in inches.

Floor truss load tables. Tcll top chord floor live load 2. View size selection tables. Alpine system 42 floor truss 4x2 span tables for southern pine select structural 40 0 psf top chord live load 10 0 psf top chord dead load 5 0 psf bottom chord dead load 55 0 psf total load load duration factor 1 00 maximum spans may be limited by l d 20 limit. Floor truss span tables alpine engineered products 17 these allowable spans are based on nds 91.

See all 10 articles floor performance. View allowable load tables. 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. Openings are to be located in the center of the span max opening width is 24 inches 7.

Maximum deflection is limited by l 360 or l 480 under live load. 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. Find span carts for open joist products. You can use sbca s span charts to roughly determine truss sizes available.

Non load bearing partition wall weight consideration. Member of a truss. Typically roof live load is snow while floor live loads are furniture. Spacing of trusses are center to center in inches.

Level returna lumber filler placed horizontally from the end of an overhang to the outside wall to form a soffit. Floor joists with l 360 deflection limits f 1 live load of 30 psf plus dead load of 10 psf. Basic lumber design values are f 2000 psi f 1100 psi f 2000 psi e 1 800 000 psi duration of load 1 00. 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.

Spans shown are in feet 4. Top and bottom chords braced by structural sheathing 6. 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.

Tcdl 10 psf and bcdl 5 psf 3. 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. Live load l 480 total load l 360 5. Or l 360 l 480 ll deflection limits chords are 2 x 4 southern pine.

Tji multiple continuous spans. Simplified span tables for southern pine lumber and glued laminated timber glulam headers beams and girders. Garage floor design guidelines. Keep in mind that these tables are for estimations only.

Deck lateral load connection to a tji floor system.