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Drywall sheet calculator

Count the drywall sheets a room needs from wall and ceiling size.

Unit

Feet or metres for every length you type.

ft

The total length of wall to cover.

ft

The height of that wall.

ft

Leave both ceiling fields blank to skip the ceiling.

ft

Enter both ceiling sides, or neither.

sq ft

Total area of doors and windows. Blank keeps them in the count.

%

A whole percent from 0 to 100. Blank means none.

Sheet size

Nominal sizes. Check the sheet you buy.

Result

Drywall sheet calculator

Unit
Feet
Sheet size
4 × 8 ft

Sheets

—

Enter the wall size to see how many sheets.

Ballpark estimate, check before you buy or quote.

1 foot = 0.3048 metres and 1 inch = 25.4 millimetres exactly (international yard and pound agreement, 1 July 1959).

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

Wall area, plus a ceiling if you enter both sides, minus openings, plus the waste percent you choose. The count rounds up to a whole sheet.

How it works

Wall area is length times height. A ceiling is added when you enter both sides. Openings you type are taken off. Waste is a percent you choose. The count is rounded up to a whole sheet.

Rules

Sheet sizes are the nominal sizes named on the option. Check the sheet you buy. 1 foot = 0.3048 metres (1 July 1959) when a foot sheet is used with metres.

Questions

What sheet size does it use?

You pick the sheet size, such as 4 by 8 feet. A 1200 by 2400 millimetre sheet is there too.

Does it include waste?

You enter a waste percent. Blank means none. Cuts around doors, windows and corners use extra board.

Are doors and windows taken off?

Yes, if you enter their total area. Leave the opening area blank to order more board.

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.