Coverage Calculator

Siding Calculator

1. Enter the calculations for the total wall area (length x height):
Total Length:
Total Height:
2. Subtract square footage of openings for windows and doors:
Doors:
Windows:
3. Select the appropriate factor for either linear or surface measurement:
Nominal Width
(inches)
Dressed Width
(inches)
Exposed Face Width
(inches)
Linear Feet FactorSurface Measure
43 1/22 1/24.801.60
65 1/24 1/22.671.33
87 1/26 1/21.851.23
109 1/28 1/21.411.18
1211 1/210 1/21.141.14
Result
10% is added to accomodate trim.
Linear Feet:
Surface Measure: