Roofing Calculators

Calculate roofing materials, shingle counts, and costs. Estimate roof area and bundles needed.

Calculate the number of shingle bundles needed for your roofing project. Get estimates for total roof area, bundles required, and total cost.

Calculate metal roofing panels, trim pieces, and screws needed. Works for corrugated, standing seam, and R-panel roofing.

Calculate materials for flat or low-slope roofing. Includes membrane, adhesive, and insulation estimates.

Calculate roofing felt or synthetic underlayment needed for your roof. Includes 15# and 30# felt and synthetic options.

Calculate mineral roll roofing needed for low-slope roofs. Includes coverage and nail estimates.

Calculate proper roof ventilation requirements. Intake vents, exhaust vents, and attic fan sizing.

Calculate roof flashing needs for valleys, dormers, chimneys, and roof-to-wall intersections.

We're constantly adding new calculators. Check back regularly for more tools.