Need to know how much paint to buy for a 12x12-foot room? At 144 square feet of floor area, this is a medium-sized room. Our pre-calculated estimates below show exactly how many gallons you need for two coats of standard paint, with deductions for one door and 2 windows.
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Paint Needed
2
gallons
This covers 333 square feet with 2 coats of standard paint.
Flat or eggshell finish recommended for bedrooms. Low-VOC paint is ideal for better air quality.
Based on a 12x12 ft room with 8-ft ceilings, 1 door(s), and 2 window(s). Paint at 400 sq ft/gallon with 15% waste buffer.
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A 12x12 room with 8-foot ceilings has approximately 384 square feet of wall area before deductions. After accounting for one door and 2 windows, you will typically need about 2 gallons for two coats of standard paint.
A 12x12 room with standard 8-foot ceilings has 384 square feet of total wall area. After subtracting for doors and windows (typically 51 sq ft), the net paintable area is about 333 square feet.
A 12x12 room with 8-foot ceilings needs about 2 gallons of paint for two coats. This accounts for standard deductions (one door and two windows). The total paintable wall area is approximately 333 square feet.
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