TRUSSES

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SYSTEM 42 - Maximum Duct Dimension

System 42 Warren Measurements in Inches

Maximum Duct Dimensions

System 42 Warren Measurements In Inches

System 42 Modified Warren Measurements in Inches

Modified Warren Measurements

System 42 -Floor Truss Span Tables

These overall spans are based on NDS 91. Allowable design load is limited by deflection to L/360 under live load. Subtract total dead load from loads shown to determine allowable live load. TDO is overall truss depth in inches. Spacing of trusses are center to center (in inches). Other depths available. Allowable total loads are in psf. Top Chord Dead Load = 10 psf. Bottom Chord Dead Load = 5 psf. Center Line Chase = 24" max. Lumber Basic Design Values: F(b) = 2000 psi F(t) = 1100 psi F(c) =2000 psi E = 1800000 psi Duration Of Load = 1.00.
System 42 Floor Truss Span Table

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