Choose a Roofing Tool
These roofing calculators help you measure true roof area from footprint and pitch, estimate shingles and bundles, and plan framing basics. Great for DIY roof repairs, replacements, and new build planning.
Roof Square Footage Calculator
Calculate true roof area using footprint, pitch, and common roof factors.
Open calculator →Roof Pitch Calculator
Find pitch (rise/run), angle, and slope for roofing and framing measurements.
Open calculator →Roof Truss Calculator
Plan truss spacing and coverage for basic roof layout and material planning.
Open calculator →Shingle Calculator
Estimate squares, bundles, and waste allowance based on roof area and pitch.
Open calculator →What These Roofing Tools Help You Calculate
- True roof area: estimated square footage for ordering shingles and underlayment.
- Roof pitch and slope: rise/run, pitch angle, and slope comparisons.
- Shingle quantities: squares, bundles, and waste allowances.
- Basic framing layout: truss spacing and coverage planning.
Tips for Accurate Roofing Estimates
- Pitch increases real roof area—don’t rely on footprint alone.
- Add a waste allowance for valleys, hips, dormers, and cuts (often 10–15%+).
- Account for overhangs, ridges, and complex rooflines when measuring.
- Always follow local standards and manufacturer specs for materials and fastening.
For assumptions and formulas, see our Methodology and Data Sources.
Important Estimate Disclaimer
Results are general estimates only and may vary based on roof complexity, measurement accuracy, material specifications, and installation requirements.
Always verify roof measurements and follow local building codes and manufacturer instructions. Consult a qualified professional for structural or safety-related concerns.