Each individual floor truss design is unique based on multiple variables: geometry, loading, spacing, bearing conditions, etc. Span Tables below illustrate common combinations of the multiple variables available.

Spacing of trusses are center to center (in inches). Top Chord Dead Load = 10 psf. Bottom Chord Dead Load = 5 psf. Center Line Chase = 24" max. Trusses must be designed for any special loading, such as concentrated loads. Other floor and roof loading conditions, a variety of species and other lumber grades are available. 1 (b) (t) (c)

Floor Joist Scab Cantilever Floor Cantilevered Perpendicular and Parallel to Floor Truss Span Strongback Lateral Supports 24" Max. Approx. 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. Roof-Floor Truss manual 7/31 ...

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

One of the biggest advantages of floor trusses is that they can span further than conventional framing (i.e. 2X10’s or 2X12’s) or I-joists. Here is a chart that we use for quick reference to match floor truss height and spacing with any given span.

representative span tables The following tables provide representative spans that are possible with 4x2 floor trusses at various truss depths, on-center spacing and deflection limitations.

Every TrusSteel floor truss is a custom design based upon the unique load, span, bearing, use, and code criteria of a particular project. The load / span tables shown below demonstrate only a tiny subset of the possible combinations available with TrusSteel CFS floor trusses. Spans Shown in charts are in feet.

Floor trusses are delivered to your site, ready for installation. No cutting or fitting is required. Strong, lightweight and rigid “System 42” Floor Trusses go up easily and quickly. Often without the use of a crane. Expensive steelworkers, welders or riggers are not required. Your crew can do it all. Decking and ceiling materials are ...

Important Note: Spans shown are examples of truss spans for the loadings shown. Different loading, building design criteria or building codes could alter the maximum span of a given truss.

Span Tables Span Tables Floor Trusses #2 Southern Pine Floor Trusses #2 Southern Pine Warren Web Style Deflection L/360 if Span < 20' or L/480 if > 20' Deflection L/360 if Span < 20' or L/480 if > 20' Spacing Spacing Floor Depth 16” O.C. 19.2” O.C. 24” O.C. Floor Depth 16” O.C. 19.2” O.C. 24” O.C.