Roofing calculator: squares and shingle bundles

For one roof face: its width along the eave, its horizontal run (plan view) and its pitch. You get the real sloped area, the squares and the shingle bundles to order.

Units
ft
ft
/12
%

Result

Fill in the fields to see the result.

A quick estimate. The template handles the whole job: several roof faces, underlayment, ridge cap and totals by section.

How it is calculated

Pitch factor = square root of (1 + (pitch / 12)²). Real area = width x horizontal run x pitch factor. 10% waste by default, as in the template. Squares = area with waste / 100 sq ft. Bundles = 3 per square, rounded up.

The whole job in MesuPro

Roofing: measurement and materials

Real sloped area from the pitch, squares, shingles, underlayment, ridge cap and drip edge.

Feet and inches by default

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