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Roof Shingle Calculator
Calculate roofing squares, shingle bundles, and material requirements
Roofing Standard: 1 roofing square = $100\text{ sq ft}$. Standard architectural/3-tab shingles require 3 bundles per square (approx. $33.3\text{ sq ft}$ per bundle). Includes a 10% waste allowance.
Roof Area & Waste Specifications
Calculation Results
⚠️ Complex roof geometries with multiple valleys, hips, ridges, and dormers generate higher cut waste. Consider increasing waste allowance to 15% for intricate roof designs.