Rectangular duct sheet area

Rectangular duct sheet area with explicit inputs, units and reproducible calculations.

Inputs

• Duct width (mm)
• Duct height (mm)
• Straight duct length (mm)

Assumptions and limitations

Ideal thin-wall straight open-ended duct. No seams, folds, supports, bends, end caps, insulation or fabrication allowance.

Source

Calculation source

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