Online Ductulator
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Duct type: Metal
Ductboard
Flex
Size by: Friction rate
Velocity
Friction Rate:
per 100 ft. in/wg
Duct TEL :
ft. * include fittings in the Duct TEL
Enter either: CFM:
or Duct Size:
CFM:
Convert Rectangular duct to Round Equivalent
Side 1:
inches Side 2:
inches
Convert Round duct to Rectangular Equivalent
Diameter:
inches Side 1:
inches (must enter one side to get the other)