Roofing_Calculator – Project Calculator Pro

Roofing Calculator

Estimate roofing materials and project costs using either measured roof squares or horizontal roof dimensions.

Calculation Method Use Roof Dimensions Enter Measured Roof Squares

Enter the horizontal footprint dimensions for each roof section. The pitch will be used to calculate the sloped roof surface area.

Horizontal Length

Horizontal Width

Roof Pitch Rise

/ 12

Enter the inches of rise for every 12 inches of horizontal run. For example, enter 4 for a 4/12 roof pitch.

Waste Allowance (%)

Shingle Coverage (sq ft per bundle)

Underlayment Coverage (sq ft per roll)

Roofing Nails (lb per square)

Price per Shingle Bundle

Underlayment Cost per Roll

Roofing Nail Cost per Pound

Labor Cost per Square

Enter zero when labor should not be included.

Markup (%)