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Roofing Calculator

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Calculate roofing materials

About Roofing Calculator

Calculate roofing materials needed including shingles, underlayment, and accessories.

How to Use:

  1. Enter roof dimensions and pitch
  2. Select roofing material type
  3. Add waste factor for cuts and overlaps
  4. Get complete materials list

Formula Used:

Area = Length × Width × Pitch Factor, Materials = Area × Coverage Rate

Examples:

  • 30×40 ft roof, 6/12 pitch → 1,342 sq ft area, 14 squares of shingles

Common Use Cases:

  • Roof replacement
  • New construction
  • Repair projects
  • Cost estimation
  • Contractor planning

Roofing Calculator Tool

Frequently Asked Questions

Is this Roofing Calculator free to use?

Yes, our Roofing Calculator is completely free to use. No registration, payment, or subscription required.

How accurate are the roofing calculator calculations?

Our calculator uses precise mathematical formulas and algorithms to ensure accurate results for all your home calculations. The formula used is: Area = Length × Width × Pitch Factor, Materials = Area × Coverage Rate

What can I use this roofing calculator for?

This calculator is perfect for: Roof replacement, New construction, Repair projects, Cost estimation, Contractor planning. It's designed for both personal and professional use.

Can I use this on mobile devices?

Yes, our Roofing Calculator is fully responsive and works perfectly on smartphones, tablets, and desktop computers. The interface adapts to your screen size for optimal usability.

Do you store my calculation data?

No, we don't store any of your input data or calculation results. All calculations are performed locally in your browser for complete privacy and security.