Open Web Floor Joist Span Chart

Open joist is a revolutionary open web all wood floor truss engineered with superior strength and load carrying capabilities.

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. Floor truss span tables alpine engineered products 17 these allowable spans are based on nds 91. As the name trimjoist indicates our product can be trimmed on the construction site for a custom fit. The versatility of the trimjoist is unmatched by any other pre engineered wood joist product.

Spacing of trusses are center to center in inches. Total load deflection is limited to l 240. 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. The re engineering of the wooden floor joist that.

Live load deflection is limited to l 480. Find span carts for open joist products. The indicated spans are based on simple span joists. 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.

Span tables below illustrate common combinations of the multiple variables available. Geometry loading spacing bearing conditions etc. The open web nature of the trimjoist is ideal for plumbing electrical and a c duct work. 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.

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. Engineered wood products ewp span and size charts for bci joists. No more custom made floor trusses. Open joist by asc span charts.

Maximum deflection is limited by l 360 or l 480 under live load. Floor joist span use this table to determine the maximum lengths of floor joists based on species of lumber joist spacing and joist size. Minimum end bearing length is 1 spans in bold require web stiffeners at osb end panel. Find out more about load opening charts and requirements for the trimjoist floor truss system.