Use this shingle calculator to estimate the number of asphalt-shingle bundles needed from a known roof area. Because packaging varies by product, you can adjust the number of bundles required per roofing square.
Why Bundles Per Square Can Vary
Many asphalt-shingle products use about three bundles per square, but product packaging can vary. Confirm the coverage printed by the manufacturer or supplier and change the calculator input when needed.
Do Not Order From the Calculator Alone
Starter materials, ridge caps, valleys, complex roof geometry and product packaging affect actual quantities. Confirm field measurements and product coverage before ordering roofing materials.
Learn more about asphalt shingle roofing in Austin.