Roof Shingle Bundles

About this calculator

Enter Roof area (m2) and the Roof Shingle Bundles calculates Bundles (3 per square), Squares in one step. It is built for home & construction jobs where a quick, repeatable answer beats guesswork. Roof pitch changes real area; measure the sloped surface, not the footprint.

How it works

The calculator multiplies your input by a fixed coefficient for each line. For example, every 1 m2 gives 0.32293 bundles for bundles (3 per square).

Worked example

If you enter 150 (Roof area (m2)), Bundles (3 per square) comes to 48.439 bundles and Squares comes to 16.146 squares.

Common mistakes

Roof pitch changes real area; measure the sloped surface, not the footprint.
Mixing metric and imperial measurements on the same job.

FAQ

How much bundles (3 per square) do I need per m2?

Each 1 m2 gives 0.32293 bundles.

How is Squares calculated?

Squares equals your input times 0.10764 squares. With 150 entered, that is 16.146 squares.

Are the results exact?

Multiplication is exact; the inputs behind bundles (3 per square) are typical figures, so check them against your own conditions. This is general information, not professional advice.

What is the most common mistake?

Roof pitch changes real area; measure the sloped surface, not the footprint.

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