Roofing Calculator

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Estimates the area and cost of a roof based on its dimensions, material cost, and labor cost.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Roof Length (feet), Roof Width (feet), Material Cost per Square Foot ($), and Labor Cost per Square Foot ($) in the units shown.

Step 2

Read Roof Area, Labor Cost, Material Cost, and Total Cost in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

See the inputs and their calculated results.

Roof Length (feet): 15 ft; Roof Width (feet): 10 ft; Material Cost per Square Foot ($): 3.5 $; Labor Cost per Square Foot ($): 4.5 $

Roof Area: 150 sq ft; Labor Cost: 675 $; Material Cost: 525 $; Total Cost: 1,200 $

Roof Length (feet): 25 ft; Roof Width (feet): 20 ft; Material Cost per Square Foot ($): 3.5 $; Labor Cost per Square Foot ($): 4.5 $

Roof Area: 500 sq ft; Labor Cost: 2,250 $; Material Cost: 1,750 $; Total Cost: 4,000 $

Roof Length (feet): 40 ft; Roof Width (feet): 30 ft; Material Cost per Square Foot ($): 3.5 $; Labor Cost per Square Foot ($): 4.5 $

Roof Area: 1,200 sq ft; Labor Cost: 5,400 $; Material Cost: 4,200 $; Total Cost: 9,600 $

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