Shingles & Materials
Quantity take-off for a re-roof: shingle bundles and squares, underlayment rolls, roofing nails, ridge-cap bundles, drip-edge pieces and metal panels. Coverage typicals are user-adjustable — check your product label. Results are planning estimates.
Working on a roof is dangerous — falls are a leading cause of construction deaths. Measure from the ground, from plans or from photos where possible, use proper fall protection if you must go up, and consider hiring a licensed roofing professional. Results are planning estimates, not a bid.
Shingle BundlesWork out how many bundles of shingles you need from your roof area and a waste allowance. Three bundles cover one 100 sq ft square; the result rounds up.Underlayment RollsFind how many rolls of synthetic or felt (#15 / #30) underlayment your roof needs from its area, a waste allowance and the coverage printed on the roll.Roofing NailsEstimate how many roofing nails you need and how many pounds that is, from your squares, the 4-nail or 6-nail high-wind pattern and nails per pound.Ridge CapCalculate how many ridge-cap bundles you need from the total length of ridges and hips and the coverage each bundle gives. Rounds up to whole bundles.Drip EdgeWork out how many pieces of drip edge you need from the total eave and rake length and the piece length, with a 5% allowance for the joint overlaps.Metal PanelsEstimate how many metal roofing panels you need per slope and in total from your eave length, the panel coverage width and the number of slopes.
Every Shingles & Materials tool is calculated server-side — visible immediately — with its formula, a worked example and a reference table. Background reading is in the guides.