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Free Tool · 01
Roofing Estimator
Enter roof dimensions, pitch, and material type to get roofing squares, material quantities, and a complete cost estimate.
Roof Sections
Section 1
Material & Options
How Pitch Works
Pitch is the rise over a 12-inch run. A 6/12 pitch rises 6 inches for every 12 inches of horizontal run. Higher pitch = more actual roof area than flat area.
What is a Square?
One roofing square = 100 SF of roof area. Shingles are sold by the bundle — typically 3 bundles per square for standard shingles.
Waste Factor
Simple roofs (few hips/valleys) need ~10% waste. Complex roofs with many angles, dormers, and valleys need 20–25%.
Need a Full Roofing Takeoff?
Our estimators deliver drawing-referenced roofing takeoffs with square counts, material specs, and waste factors.
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