Cost guide
How Much Does It Cost to Paint a 12x12 Room?
A 12x12 bedroom has about 384 square feet of wall. Expect to pay roughly $130 to $180 for DIY materials, or $650 to $900 for a professional paint job in 2026. The numbers below show exactly where that comes from, with a calculator you can tune to your own room.
Wall area for a 12x12 room
Walls are the perimeter times the height: (12 + 12) x 2 x 8 = 384 sq ft. Subtract about 35 sq ft for a standard door and 30 sq ft total for two windows, and you are near 320 sq ft of paintable wall. Two coats doubles the work the paint has to cover, so most quotes assume you are coating roughly 640 to 700 sq ft of "paint film."
DIY material cost
At a typical $42 per gallon covering about 350 sq ft, two coats on a 12x12 room needs about 2.5 gallons, or roughly $105 in paint. Add rollers, tape, trays, drop cloths, and a brush and budget another $30 to $50. A DIY 12x12 bedroom usually lands around $130 to $180 all in.
Professional labor cost
Painters commonly charge by the square foot of wall. At $1.75 to $2.50 per sq ft, 384 sq ft of wall runs about $670 to $960 in labor. Pros supply their own materials, so a fully installed 12x12 room is typically $650 to $900+ depending on your region, prep work, and whether the ceiling is included.
What changes the price
- Ceiling: add the floor square footage (144 sq ft for 12x12) at the same rate.
- Dark-to-light color shifts: often need a third coat or primer, raising material cost.
- Surface prep: patching, sanding, or removing wallpaper adds labor a per-sq-ft estimate does not capture.
- Region: labor in large metros runs higher than rural rates.
FAQ
How many gallons for a 12x12 room with two coats?
About 2.5 gallons at standard coverage. Buy 3 gallons if you include the ceiling or use a deeper color that needs more coats.
Is it cheaper to paint myself?
Yes for materials only. DIY a 12x12 room costs roughly $130 to $180 in supplies, while hiring a pro is usually $650 to $900 for the same space.
Does this include the ceiling?
No, the base estimate is walls only. Add the room's floor square footage if you are painting the ceiling too.
Independent estimate. Prices vary by paint brand, region, and surface condition. Use the Cost to Paint a Room Calculator for a full material-plus-labor quote, or the Paint Calculator for gallons and coverage.