Free Roofing Estimation Tool

Whether you are a homeowner planning a roof replacement or a roofing contractor putting together a bid, knowing the exact amount of materials required is critical. Our free roofing material calculator takes the guesswork out of your estimates.

How to Use This Calculator

Simply measure the base length and width of your building in feet. Then, select the appropriate roof pitch (the steepness of your roof). The calculator will automatically apply the pitch multiplier to determine the actual surface area of the roof.

  • Total Area: The true surface area of the roof, including the slope.
  • Roofing Squares: In roofing, a "square" equals 100 square feet. This is how most roofing materials are sold.
  • Shingle Bundles: Most standard architectural shingles require 3 bundles to cover one square. We automatically calculate this for you.

Need a Professional Estimate?

While our free calculators are great for rough material estimates, a professional construction project requires a detailed, highly accurate takeoff. Our team of expert estimators uses advanced software like PlanSwift and Bluebeam to provide comprehensive roofing takeoffs, including underlayment, drip edges, ridge caps, flashing, and labor costs.