Floor Truss Load Tables

Live load l 480 total load l 360 5.

Floor truss load tables.

Openings are to be located in the center of the span max opening width is 24 inches 7. 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. Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters. Basic lumber design values are f 2000 psi f 1100 psi f 2000 psi e 1 800 000 psi duration of load 1 00.

View joist rafter tables. See all 10 articles floor performance. 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. You can use sbca s span charts to roughly determine truss sizes available.

Floor joists with l 360 deflection limits f 1 live load of 30 psf plus dead load of 10 psf. Keep in mind that these tables are for estimations only. Simplified span tables for southern pine lumber and glued laminated timber glulam headers beams and girders. Can i attach a deck ledger to 1 1 8 or 1 1 4 trus joist rim board.

Garage floor design guidelines. Deck lateral load connection to a tji floor system. Spans shown are in feet 4. Level returna lumber filler placed horizontally from the end of an overhang to the outside wall to form a soffit.

Maximum deflection is limited by l 360 or l 480 under live load. Spacing of trusses are center to center in inches. Member of a truss. Typically roof live load is snow while floor live loads are furniture.

View size selection tables. Top and bottom chords braced by structural sheathing 6. 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. Non load bearing partition wall weight consideration.

Live loadany temporary applied load to a floor truss chord. Open joist is a revolutionary open web all wood floor truss engineered with superior strength and load carrying capabilities. Or l 360 l 480 ll deflection limits chords are 2 x 4 southern pine. Tcdl 10 psf and bcdl 5 psf 3.

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. L d ratiothe ratio of the truss span l to its depth d both dimensions in inches. 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. Find span carts for open joist products.

Tcll top chord floor live load 2.