Spike's Calculators


Height Calculation for a Common Truss

Calculate the height of a common truss using the building width and the slope of the roof.

Roof Truss Height

If you can't get the heel height, most residential trusses will have a 3 ½" top cord. Depending on your roof slope add 4 to 5 inches for heel height.

Height of Truss

Building Width ft in n
Roof Pitch / 12
Heel Height in n


Height in
Height ft in


  1. building width
  2. slope in inches per foot
  3. truss heel height


  1. height in inches
  2. height in feet and inches

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