Open Web Floor Trusses Span Chart

Dead load deflection is limited to l 360 and total load deflection is limited to l 240.

Open web floor trusses span chart.

This also reduces the need and cost for extra bearing posts beams and footings. Open joist is a revolutionary open web all wood floor truss engineered with superior strength and load carrying capabilities. Spans shown are in feet 4. No more custom made floor trusses.

The maximum span is measured o c. Roof floor truss manual 7 31. Open joist by asc span charts. Openings are to be located in the center of the span max opening width is 24 inches 7.

Floor joist scab cantilever floor cantilevered perpendicular and parallel to floor truss span strongback lateral supports 24 max. The minimum bearing length is 1 spans values in bold indicate that web stiffeners are required at the osb end panel. Top and bottom chords braced by structural sheathing 6. Bci joists are specially constructed i joists with flanges made from strong versa lam laminated veneer lumber with oriented stranded board webs and approved waterproof structural adhesives providing outstanding strength and durability.

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 versatility of the trimjoist is unmatched by any other pre engineered wood joist product. Our open joist system the strength of the triangulation the accuracy of multiple joints optimizing the use of wood in a responsible manner and adjustment flexibility to the site makes the triforce open joist the only floor open joist and adjustable made entirely of wood and assembled without a metal connector. Floor truss span tables alpine engineered products 17 these allowable spans are based on nds 91.

Find span carts for open joist products. Find out more about load opening charts and requirements for the trimjoist floor truss system. Maximum deflection is limited by l 360 or l 480 under live load. The spans are based on simple span joists.

The re engineering of the wooden floor joist that. Live load l 480 total load l 360 5. Tcdl 10 psf and bcdl 5 psf 3. Floor trusses can span farther between bearing points than i joists allowing for larger open rooms.

Engineered wood products ewp span and size charts for bci joists. Floor trusses have built in openings which can be used to install hvac ductwork plumbing lines and electrical wiring. 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. Trimjoist is the marriage of an open web floor truss and a trimmable wooden i joist bringing the best features of each to the relationship.

Tcll top chord floor live load 2. Spacing of trusses are center to center in inches.