how many sq ft can a gallon of paint cover
EstimatinÂ­g the paint you'll need for a job is easy. Take a few minutes at home to measure the area to be painted. A gallon of paint will typically cover 450 square feet according to the manufacturer's calculations. It's safer to figure 400 square feet of coveÂ­rage per gallon of paint. If you're buying 2 or more gallons of the same color, it's a good idea to mix them all together at home so color variations don't show up in the Â­middle of a wall.