Free Tool

Roofing Material Estimator

Enter your roof footprint and pitch to calculate shingles, bundles, squares, underlayment, and ridge cap — waste factor included.

Flat footprint as seen from above
5% simple gable15% standard25% complex hip
Material Quantities
True Sloped Area
Footprint x pitch multiplier
2,236 sq ft
Area with Waste
Sloped area + waste factor
2,504 sq ft
Roofing Squares
Area divided by 100
25.0 sq
Shingle Bundles
3 bundles per square
75 bundles
Underlayment Rolls
1 roll per 400 sq ft
7 rolls
Ridge Cap Bundles
Est. ridge length divided by 35 lf per bundle
2 bundles
Starter Strip
Estimated perimeter
— lf
Note: Estimates only. Actual quantities depend on roof complexity and local supplier bundle sizes.
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<iframe src="https://www.roofmanager.ca/tools/material-estimator/embed" width="100%" height="540" style="border:none;border-radius:12px;display:block;" title="Free Roofing Material Estimator by Roof Manager" loading="lazy"></iframe> <p style="margin:8px 0 0;font-size:12px;text-align:center;"><a href="https://www.roofmanager.ca/tools/material-estimator">Free Roofing Material Estimator</a> by <a href="https://www.roofmanager.ca">Roof Manager</a></p>

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