Material calculator tools
Plan your projects with confidence. Our Material Calculator Tools help contractors, businesses, and homeowners estimate the right quantities of building materials before purchasing. Use these calculators to save time, reduce waste, and ensure accurate planning for every job.
Roofing calculator
Determine how many shingles or roofing panels you need.
shingles
- Roof area
- 1,417 sq ft
- Squares
- 14.2 (15.6 w/ waste)
- Underlayment
- 2 rolls (10 sq)
- Coil nails
- ~4,987 · 1 box
- Drip edge
- 16 × 10 ft
How we figured this: Gable roof: footprint plus overhang × pitch factor √(1 + (rise/12)²) = 1.054; 1 square = 100 sq ft, 10% waste, 3 bundles per square, 4 nails per shingle (~320 per square), underlayment +10% for laps.
From our shelves
| 16× | Drip Edge 2x2x10 ft, Mill Finish$10.99 / each | $175.84 |
Estimated total $175.84
Pick the exact product yourself, or ask the counter to quote it and special-order it.
- 47 bundles of architectural shingles Find it in the catalog
- Roofing felt or underlayment, 2 rolls (10 sq each) Find it in the catalog
- Roofing nails, about 4,987 Find it in the catalog
- Ridge cap for 42 ft of ridge and starter strip for 84 ft of eaves Find it in the catalog
Estimates only. Measurements, layout, and local code change real quantities, so confirm with the counter before you buy for structural work.
Why use our calculators?
Bring your numbers to the counter and we'll check them against the job before anything gets loaded.
Call (928) 669-9254- Reduce material waste
- Improve project accuracy
- Save time during planning
- Ensure proper budgeting
- Make in-store shopping faster and easier