Roofing Calculator

ft
ft
%

10% simple gable, 15% hip roofs or many valleys.

3 for most architectural shingles.

$

Roofing squares

14.76 squares

Shingle bundles
45 bundles
Roof surface area (no waste)
1,342 sq ft
Pitch multiplier
1.118
Roof angle
26.6 °
Synthetic underlayment rolls (10 squares each)
2 rolls
Drip edge (10 ft pieces, full perimeter)
14 pieces
Shingle cost
$1,800

10% waste included. A square is 100 sq ft of roof. Ridge cap and starter strip are extra.

Open the full roofing calculator with the formula and FAQs at Calcs for Life