how many gallons of paint per one room
The first cost is the paint. Expect to pay between $15 and $30 per gallon of paint, and you'll need 2-3 gallons for an average-sized bedroom (with some left over for contingencies and touch-ups). Keep it in mind that the more durable the paint is, the more you'll pay for the paint material.
Report Abuse. 1  If your room is has four-meter high ceilings and the walls are 3 meters wide, that is well over 100 square feet per wall. You have to deduct the square footage for the window space. 2  We just painted our 12 X 11 room... You'll need (for 2 coats) 2 gallons plus 1 gallon for the ceiling. 3  How Much Paint To Buy.