Roofing bundle calculator
Estimate shingle bundles from the area and waste you type. Verify with your local code or a professional.
Result
Roofing bundle calculator
- Area unit (required)
- Square feet
Bundles to order
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Enter the area, bundles per square, and waste to see a count.
Ballpark estimate, check before you buy or quote.
1 square foot = 0.09290304 square metres exactly (international yard and pound agreement, 1 July 1959). A square is 100 square feet. Bundles per square and waste are the numbers you type. Verify with your local code or a professional.
Estimate for planning only. This is not tax, legal, accounting or financial advice. Results depend on the figures you enter. Check all numbers, rates and rules with the official source or a qualified professional before relying on them.
How this works and common questions
About this tool
A roofing square is 100 square feet. Bundles are the area in squares, times the bundles per square you type, times your waste percent. The count rounds up to a whole bundle. An exact count stays as it is.
How it works
The area is turned into squares of 100 square feet. That is multiplied by the bundles per square you type and by your waste percent. The result rounds up to a whole bundle.
Rules
This is a ballpark count. Check it before you buy. The tool does not work out slope. Type the sloped area yourself. Waste cannot be more than 100 percent.
Questions
Does this work out the slope?
No. Type the area of the roof you want covered, including slope if you have already measured it.
Where does bundles per square come from?
You type it. The tool does not assume 3 bundles per square.
Why did the count go up?
Bundles round up so you do not come up short. An exact number, such as 66, stays 66.
Do I need an account?
No. The tools work without one. You only need to sign in to save your work.
Is what I type saved?
No. Nothing is saved unless you sign in and choose Save. Otherwise it stays on the page.
Do you show ads or sell my information?
No. We show no ads and we do not sell your information.
Is this tax or legal advice?
No. Results are estimates for planning. Check rates and rules with the official source or a qualified professional.
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Estimate for planning only. This is not tax, legal, accounting or financial advice. Results depend on the figures you enter. Check all numbers, rates and rules with the official source or a qualified professional before relying on them.