Joint Compound Coverage Calculator
Estimate the amount of joint compound (mud) needed for taping, finishing, and texturing drywall seams and fasteners.
Formulas Used
Gross Area = (2 × (Length + Width) × Height) + (Length × Width)
Net Area = Gross Area − (Doors × 21 ft²) − (Windows × 15 ft²)
Seam Length = Net Area × 0.053 linear ft/ft²
Fasteners = Net Area ÷ 8
Compound (gallons) = [(Seam × 0.010 × tape coats) + (Seam × 0.00667 × finish coats) + (Fasteners × 0.001 × total coats)] × Application Multiplier
Final Quantity = Compound × 1.10 (10% waste factor)