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 Spans. 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.
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 ...
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. Loads shown above are outlined as Top Chord Live Load (TCLL), Top Chord Dead Load (TCDL), and Bottom Chord Dead Load (BCDL).
This table illustrates the significant increase in span capacity by increasing floor truss depth and/or larger chord timber size, and higher timber grade. Spans for residential floor loads (1.5kPa/1.8kn) at 450mm centres
Maximum allowable spans are presented only as a guide. Allowable spans will vary due to design requirements and lumber availability. The spans in these tables represent the average spans for floor trusses manufactured with top and bottom chords of SPF 2400Fb-2.0E, SYP DSS or DF SS, and webs of SPF No.3, SYP No.3 or DF No.3.