Open Web Floor Trusses Span Chart

Spans shown are in feet 4.

Open web floor trusses span chart.

The re engineering of the wooden floor joist that. Open joist by asc span charts. Open joist is a revolutionary open web all wood floor truss engineered with superior strength and load carrying capabilities. Live load l 480 total load l 360 5.

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. The spans are based on simple span joists. Floor trusses have built in openings which can be used to install hvac ductwork plumbing lines and electrical wiring. 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.

As the name trimjoist indicates our product can be trimmed on the construction site for a custom fit. No more custom made floor trusses. Floor trusses can span farther between bearing points than i joists allowing for larger open rooms. Find out more about load opening charts and requirements for the trimjoist floor truss system.

Spacing of trusses are center to center in inches. Roof floor truss manual 7 31. Tcll top chord floor live load 2. 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.

Top and bottom chords braced by structural sheathing 6. Maximum deflection is limited by l 360 or l 480 under live load. Find span carts for open joist products. This also reduces the need and cost for extra bearing posts beams and footings.

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 open web nature of the trimjoist is ideal for plumbing electrical and a c duct work. Dead load deflection is limited to l 360 and total load deflection is limited to l 240. Of bearings and is based on uniformly loaded joists.

The versatility of the trimjoist is unmatched by any other pre engineered wood joist product. The minimum bearing length is 1 spans values in bold indicate that web stiffeners are required at the osb end panel. Tcdl 10 psf and bcdl 5 psf 3. Openings are to be located in the center of the span max opening width is 24 inches 7.

The maximum span is measured o c. Floor joist scab cantilever floor cantilevered perpendicular and parallel to floor truss span strongback lateral supports 24 max.