Paint for a 10×12 Bedroom
Free calculator with pre-filled dimensions • Updated March 2026
A 10×12 bedroom with 8-foot ceilings needs about 2 gallons of wall paint for 2 coats (598 sq ft of paintable wall area).
Open calculator with these dimensions →Painting a 10×12 Bedroom: Complete Guide
A 10×12 bedroom is one of the most common room sizes in American homes. With approximately 352 square feet of wall area (minus a door and two windows), this is a manageable weekend project that most homeowners can tackle in one day.
Paint Quantity Breakdown
| Surface | Area | Paint Needed (2 coats) |
|---|---|---|
| Walls (minus openings) | ~310 sq ft | 1.5–2 gallons |
| Ceiling | 120 sq ft | 1 gallon |
| Trim and baseboards | ~60 linear feet | 1 quart |
Total: 2 gallons wall paint + 1 gallon ceiling paint + 1 quart trim paint. Budget $80–$180 depending on paint quality.
Step-by-Step Guide
- Prep the room (1–2 hours). Remove outlet covers, tape edges with FrogTape or ScotchBlue, lay drop cloths, and fill any nail holes with spackle. Clean walls with a damp rag to remove dust.
- Prime if needed (30 min + dry time). New drywall, dark-to-light color changes, or stained areas require primer. Zinsser Bulls Eye 1-2-3 covers most situations. One gallon is enough for this room.
- Cut in edges (45 min per coat). Use a 2.5" angled brush around ceiling line, corners, trim, and outlets. Cut in one wall at a time, then roll that wall immediately for a seamless finish.
- Roll walls (30 min per coat). Use a 9" roller with 3/8" nap for smooth walls or 1/2" nap for textured. Roll in a W-pattern, then smooth vertically.
- Paint ceiling (if desired). Use flat white ceiling paint. Start at the window wall and work away from natural light to minimize lap marks.
- Paint trim last. Use semi-gloss or satin for trim and baseboards. A 2" angled brush gives the cleanest finish.
Pro Tips
- Buy 2 gallons, not 1. While the math says 1.5 gallons, touching up later with a different batch can show a color mismatch. Having extra ensures consistent color and saves a trip to the store.
- Don't cheap out on paint. Premium paints like Benjamin Moore Regal ($55–$70/gal) or Sherwin-Williams Duration ($65–$80/gal) cover in fewer coats, last longer, and are easier to clean than budget paints.
- Use an extender in hot weather. Floetrol ($8/quart) slows drying time, reducing brush marks and lap marks — especially helpful in a room with limited ventilation.
Frequently Asked Questions
How many gallons of paint for a 10×12 room?
For walls with 2 coats, you need about 1.5–2 gallons. One gallon covers approximately 350–400 square feet per coat. Buy 2 gallons to ensure consistent color and have extra for touch-ups.
How long does it take to paint a 10×12 bedroom?
A single person can paint a 10×12 bedroom in 4–6 hours including prep, two coats, and cleanup. Allow 2–4 hours of drying time between coats. Most people complete it in one full day.
Do I need primer for a bedroom?
Primer is needed when covering dark colors with light, painting new drywall, or covering stains. If repainting the same color or going slightly darker over light paint, a paint-and-primer-in-one product is usually sufficient.