Typical bundle order
Input
2,000 sq ft · 33.3 sq ft/bundle · 10% wasteOutput
≈ 66 bundlesceil(2200/33.3) = 66 bundles.
Soffit area = eave length × soffit depth (typically 12–24 inches). Add 10% waste for vents and cuts.
Use the calculator form above with your measurements. Results update instantly in your browser — no data is sent to a server.
Soffit area = eave length × soffit depth (typically 12–24 inches). Add 10% waste for vents and cuts.
Formula
See calculator inputs and results panel for step-by-step math.Pick a roof size preset or type your footprint / eave measurements.
Enter sq ft per bundle, panel, or roll from your product label.
Keep the 10% buffer on for valleys, hips, and cut waste.
Use bundles, linear feet, or sq ft in the results panel for your order.
Copy results or share a link with your contractor or supplier.
Use Roof Area or Pitch calculators first if you only know footprint dimensions.
Input
2,000 sq ft · 33.3 sq ft/bundle · 10% wasteOutput
≈ 66 bundlesceil(2200/33.3) = 66 bundles.
Input
6" rise · 12" runOutput
1.118× footprintsqrt(1+(6/12)²) ≈ 1.118.
Common real-world scenarios where this tool saves time.
2,000 sq ft roof at 33.3 sq ft/bundle with 10% waste ≈ 66 bundles.
1,800 sq ft at 32 sq ft/panel with buffer ≈ 62 panels.
160 ft perimeter eaves → order ~176 ft with 10% seam overlap.
120 ft eave × 1 ft depth = 120 sq ft soffit area.
Step-by-step chains that connect related tools for common tasks.
From footprint to order list.
| Depth | Common use | Sq ft per 100 ft eave |
|---|---|---|
| 12 in (1 ft) | Standard overhang | 100 sq ft |
| 18 in (1.5 ft) | Wide eave | 150 sq ft |
| 24 in (2 ft) | Deep soffit | 200 sq ft |
Multiply footprint by pitch multiplier — use Roof Area Calculator first.
Add 10–15% for valleys, hips, and starter strips.
Read sq ft per bundle on each wrapper — brands differ.
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One roofing square is 100 sq ft. Three-tab bundles often cover ~33.3 sq ft each — about 3 bundles per square.
10% is standard for simple gable roofs; 15% for complex hips and valleys.
Measure vertical rise over 12 inches of horizontal run — a 6/12 pitch rises 6 inches per foot.
Use Metal Roofing Calculator for panel counts, or enter panel sq ft in bundle mode tools.
Common K-style gutters ship in 10 ft sections — divide total linear feet by 10 and round up.
Measure from the wall to the outer edge of the fascia — often 12–24 inches (1–2 ft).
Yes — use Roofing Material Calculator for bundles plus underlayment roll counts.
No — it is a planning tool. Confirm quantities with your roofer or supplier before purchase.
Soffit depth and eave length inputs stay on your device — EverydayTools does not send soffit calculator data remotely.
Estimates only — not professional roofing advice. Verify quantities with a licensed roofer before purchase.
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Reviewed on 2026-06-28.
Wall to outer fascia — often 1–2 ft