How much paint do I need for a 10x10 room?

A 10×10 room with standard 8-foot ceilings has approximately 287 square feet of paintable wall space (after deducting one door and one window). For 2 coats — the standard recommendation — you'll need about 1.8 gallons. Buy 2 gallons to include a 10% touch-up buffer.

Does paint finish type affect how much paint I need?

Slightly. Matte and flat finishes cover slightly more per gallon (up to 400 sq ft) because they're thicker. Semi-gloss and gloss finishes are thinner and cover a little less (around 300–350 sq ft/gallon). For a 10×10 room the difference is rarely more than a quarter gallon.

Should I use 1 coat or 2 coats for a 10x10 room?

Two coats is the standard for most interior projects. One coat is only suitable if you're applying a very similar colour over a freshly primed surface. For any colour change — especially going to a darker or lighter shade — always plan for 2 coats.

How much does it cost to paint a 10x10 room?

Paint alone for a 10×10 room costs $50–$100 for 2 gallons of mid-range paint. Full supplies (primer, roller, tape, drop cloth) add another $40–$60. Hiring a painter typically runs $250–$450 for labour in a room this size.

Do I need to include the ceiling in my paint estimate?

Only if you're painting the ceiling too. A 10×10 ceiling is 100 sq ft and requires about an extra half-gallon of flat white ceiling paint (separate from your wall paint). Most painters buy ceiling paint separately since the formula is different.

How Much Paint Do You Need for a 10×10 Room?

Last updated: May 2026

Quick answer: A 10×10 room with standard 8-foot ceilings has roughly 287 square feet of paintable wall space (after a door and window). For 2 coats — the professional standard — you'll need approximately 1.8 gallons. Buy 2 gallons to include a 10% buffer for touch-ups.

A 10×10 foot room is one of the most common bedroom and office sizes in North American homes. It's compact enough that many DIYers can paint it in a single weekend — as long as you buy the right amount of paint up front. Running out mid-project means a second trip to the store and a potential colour-match headache.

Below is everything you need: an interactive calculator pre-set to 10×10, a detailed breakdown table, and tips that professionals use to avoid waste.

🎨 Paint Calculator — pre-set to 10×10 Open full calculator ↗

Paint needed for a 10×10 room — full breakdown

These figures assume 8-foot ceilings, one standard door (3×7 ft), and one window (3×4 ft). Paintable wall area: 287 sq ft. Coverage: 350 sq ft per gallon.

Coats	Paint finish	Paintable area	Base estimate	Buy this much
1 coat	Any finish	287 sq ft	0.8 gal	1 gallon
2 coats recommended	Eggshell / Satin	574 sq ft total	1.6 gal	2 gallons
2 coats	Semi-gloss	574 sq ft total	1.7 gal	2 gallons
2 coats	Matte / flat	574 sq ft total	1.5 gal	2 gallons
3 coats	Any finish (dark colours)	861 sq ft total	2.5 gal	3 gallons

Adding the ceiling?

A 10×10 ceiling is 100 sq ft. Buy a separate half-gallon (or 1-quart can) of flat white ceiling paint. Most professionals use ceiling-specific paint rather than leftover wall paint, since it's formulated to hide roller marks and dry without sheen.

What you're painting	Area	Paint needed (2 coats)	Recommended purchase
Walls only	287 sq ft	1.8 gal	2 gallons
Ceiling only	100 sq ft	0.6 gal	1 quart
Walls + ceiling	387 sq ft	2.2 gal	2 gal walls + 1 qt ceiling

What affects paint coverage in a small room?

Coverage numbers on the paint can (usually 350–400 sq ft per gallon) are measured under ideal lab conditions. Real-world coverage is typically lower. Here's what affects how far your paint goes:

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Surface texture

Smooth drywall absorbs much less paint than textured surfaces like orange peel or knock-down. Add 10–20% if your walls have heavy texture.

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Colour change

Going from a dark colour to a light one (or vice versa) almost always requires 3 coats. Use a tinted primer as your first coat to cut total paint use.

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Primer first

A single coat of primer reduces the number of paint coats needed and improves colour accuracy. Always prime bare drywall or patched areas.

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Touch-up buffer

Always buy at least 10% more than your base estimate. Store leftover paint in an airtight container labelled with the room — you'll thank yourself in 6 months.

Frequently asked questions

A 10×10 room with 8-foot ceilings has roughly 287 sq ft of paintable wall space after subtracting a door and window. For 2 coats — the recommended standard — you'll need about 1.8 gallons. Buy 2 gallons to include a 10% touch-up buffer.

Slightly. Matte and flat finishes cover a little more per gallon (up to 400 sq ft) because they're thicker. Semi-gloss is slightly thinner. For a 10×10 room the difference is less than a quarter gallon — not enough to change how much you buy.

Two coats is the professional standard for interior walls. One coat only works when you're applying the same colour over a freshly primed, similar-coloured surface. For most DIY repaints, budget for 2 coats — your finish will be more durable and even.

Paint alone runs $50–$100 for 2 gallons of mid-range paint. A full supply kit (primer, roller, tape, drop cloth, tray) adds $40–$60. Hiring a painter for a room this size typically costs $250–$450 in labour, depending on your location.

Yes — ceiling paint is a separate product. A 10×10 ceiling is 100 sq ft; one quart of flat white ceiling paint covers it in 2 coats. Ceiling-specific paint dries without sheen and hides roller lines better than standard wall paint.

Higher ceilings mean more wall area. A 10×10 room with 9-foot ceilings has 320 sq ft of walls; with 10-foot ceilings, 360 sq ft. Use the calculator above and enter your actual ceiling height for a precise estimate.

Get your exact paint estimate

Enter your real dimensions — including ceiling height, doors, and windows — and get a precise supply list with affiliate links to buy everything in one go.

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