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How much paint for a 12x20 ceiling?

A 12x20 ft ceiling is a flat 240 sq ft. For two coats you need roughly 1.4 gallons.

For 2 coats
1.4 gallons (~2 cans)

240 sq ft of ceiling.

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Paint needed for a 12x20 ceiling (chart)

CoatsPaint neededCans
1 coat0.7 gal1
2 coats1.4 gal2
3 coats2.1 gal3

Based on ~350 sq ft per gallon per coat. Use flat ceiling paint to hide imperfections.

🛒 Ceiling paint

Flat ceiling paint resists splatter and hides roller marks.

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Frequently asked questions

How much paint for a 12x20 ceiling?
About 1.4 gallons for two coats (240 sq ft), or 0.7 gallons for one coat.