Open Web Floor Joist Span Chart

Floor truss span tables alpine engineered products 17 these allowable spans are based on nds 91.

Open web floor joist span chart.

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. Maximum spans are measured centerline to centerline of bearing and are based on uniformly loaded joists. The versatility of the trimjoist is unmatched by any other pre engineered wood joist product.

The re engineering of the wooden floor joist that. Total load deflection is limited to l 240. Minimum end bearing length is 1 spans in bold require web stiffeners at osb end panel. Maximum deflection is limited by l 360 or l 480 under live load.

Open joist is a revolutionary open web all wood floor truss engineered with superior strength and load carrying capabilities. Geometry loading spacing bearing conditions etc. Standard asd load table open web steel joists k series based on a 50 ksi maximum yield strength adopted by the steel joist institute november 4 1985 revised to may 18 2010 effective december 31 2010 the black figures in the load table give the total safe uniformly distributed load carrying capacities in pounds per. Engineered wood products ewp span and size charts for bci joists.

Floor joist span use this table to determine the maximum lengths of floor joists based on species of lumber joist spacing and joist size. As the name trimjoist indicates our product can be trimmed on the construction site for a custom fit. Roof rafter span use this table to determine the maximum lengths of roof rafters based on species and grade of lumber spacing dimensions load and slope. Live load deflection is limited to l 480.

Find span carts for open joist products. Find out more about load opening charts and requirements for the trimjoist floor truss system. 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. No more custom made floor trusses.

Open joist by asc span charts. Span tables below illustrate common combinations of the multiple variables available. Spacing of trusses are center to center in inches. 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.