Open Web Floor Trusses Span Tables

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

Open web floor trusses span tables. Spacing of trusses are center to center in inches. 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. 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. Roof floor truss manual 7 31.

As the name trimjoist indicates our product can be trimmed on the construction site for a custom fit. Floor truss span tables alpine engineered products 17 these allowable spans are based on nds 91. Find out more about load opening charts and requirements for the trimjoist floor truss system. Floor joist scab cantilever floor cantilevered perpendicular and parallel to floor truss span strongback lateral supports 24 max.

The open web nature of the trimjoist is ideal for plumbing electrical and a c duct work. Floor trusses can span farther between bearing points than i joists allowing for larger open rooms. Tcll 40 psf tcll 80 psf tcll 125 psf truss spacing truss spacing truss spacing. Geometry loading spacing bearing conditions etc.

Open joist is a revolutionary open web all wood floor truss engineered with superior strength and load carrying capabilities. Of bearings and is based on uniformly loaded joists. The re engineering of the wooden floor joist that. 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.

Basic lumber design values are f 2000 psi f 1100 psi f 2000 psi e 1 800 000 psi duration of load 1 00. No more custom made floor trusses. This also reduces the need and cost for extra bearing posts beams and footings. Span tables below illustrate common combinations of the multiple variables available.

Floor truss span chart each individual floor truss design is unique based on multiple variables. The minimum bearing length is 1 spans values in bold indicate that web stiffeners are required at the osb end panel. The versatility of the trimjoist is unmatched by any other pre engineered wood joist product. You can also use the wood beam calculator from.

Find span carts for open joist products. Floor trusses have built in openings which can be used to install hvac ductwork plumbing lines and electrical wiring. Span tables use these tables to determine rafter span ceiling joist span and floor joist span. The spans are based on simple span joists.