Roofing Calculator - RoofKit

RoofKit is a roofing calculator and roof estimator for contractors, estimators and homeowners. Measure the roof, get squares and a complete materials list, then send a PDF quote and an invoice – all from your phone, right on the job site. Works offline. No account, no subscription. ★ ROOF MEASUREMENT & SQUARES • Gable, hip and shed roofs, plus L, T and U shapes with wings – valleys and hips are worked out for you • Single planes: rectangle, trapezoid or triangle, measured from the ground or on the roof • Different overhang on every eave and rake • Feet, inches and fractions exactly as you say them: 12' 6 1/2"; metric works too • Roof area in sq ft, roofing squares, waste and squares to order • Eave, rake, ridge, hip and valley lengths • Roof drawing from above: every side named, with its area and pitch – tap a side to edit it ★ SHINGLE CALCULATOR & MATERIALS LIST • Asphalt shingles (3-tab, architectural, premium): bundles, starter strip, hip & ridge cap, roofing nails • Metal roofing – standing seam and exposed fastener: panels, screws or clips, ridge cap, closures, trim • Concrete and clay tile: tiles, ridge tiles, battens, bird stop • Slate and cedar shakes, plus TPO / EPDM membrane for low-slope roofs • Underlayment, ice & water shield, drip edge, vents and pipe boots • Tap any line to see the formula behind it. Every coverage is editable and rounded up to whole packs • Warning when the pitch is below the minimum slope for the covering • Send the order list to your supplier – quantities only, no prices ★ ROOF PITCH & RAFTERS • Roof pitch calculator: x/12, degrees and percent • Pitch gauge – lay your phone on the roof or a rafter to read the pitch • Common, hip and valley rafter length, plumb and level cuts, birdsmouth ★ ROOFING ESTIMATE, PDF QUOTE & INVOICE • Your material prices, labor per square, markup, sales tax, discount and deposit • Extra work priced from the roof measurements: tear-off and extra layers, decking, gutters and downspouts, gutter guards, ridge vent, valley metal, fascia and soffit, chimney flashing, skylights, steep and two-story charges, dumpster, permit and delivery • Professional PDF quote with your logo, business details, the roof drawing and signature lines • One tap turns an accepted quote into an invoice with its own number, due date and deposit received • See your cost and profit on every job – they are never printed on the quote ★ BUILT FOR THE JOB SITE • Works offline – no signal needed on the roof • Big, clear numbers and buttons, light and dark theme • Your jobs, customers and logo stay on your phone. No sign-up FREE AND PRO Free: the roof calculator, squares, the full materials list, rafters, the pitch gauge, PDF quotes and invoices with your prices and logo, and 3 saved jobs. The free version shows ads: a short video before each PDF and one small banner on the Home and Jobs screens – never inside the calculator or a quote. RoofKit Pro is a one-time purchase, no subscription: no ads, unlimited saved jobs, duplicate jobs, job notes, a customer list, backup file and CSV export. Try every Pro feature free for 14 days – no card needed. Questions or ideas? Settings → Contact us. RoofKit gives estimates only. It is not an engineering design and doesn't replace measuring on site. Building codes vary by state and town – check yours before ordering.