Roofing Shingle Calculator
Bundles of shingles from the roof area and the cover per bundle, plus waste.
Bundles of shingles from the roof area and the cover per bundle on the wrapping. Starter strips and ridge are extra.
Measure
Waste allowance
Bundles to order
33
You need 33 bundles for 90 m², including 10% waste.
- Roof area
- 90 m²
- With waste
- 99 m²
- Starter strips, hips, and ridge are not included.
- 3 m² a bundle is a starting point — use the product label.
Bundles33
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Worked example
90 m² of roof at 3 m² a bundle, with 10% waste, is 33 bundles. Change the cover per bundle to match the product label.
FAQ
- What is a bundle?
- A pack of shingles. Coverage per bundle is printed on the wrapping. Three square metres is the default here, not a standard you should assume.
- Does this include starter strips and ridge?
- No. Order those from the manufacturer’s instructions, on top of the field bundles.
- Should I add waste?
- Yes for hips and valleys. 10% is the default.