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Duct Area Calculation excel sheet

Before you get into the calculation you have to consider two things in the drawing sheet

1) units of height and width of a duct

2) scale of the drawing

To calculate the rectangular duct area, we need a Duct Area Calculation excel sheet, height, width, and length, take 10% extra of the duct this will resolve the quantity assumption.

The Excel sheet above calculates the HVAC duct Area:

  • Duct Surface Area
  • Gauge

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