You don’t need much money to paint a room, but you should figure out how much it will cost before you start. Begin by calculating the length of the walls you need to paint from one end to the other. The height of the wall from the floor to the top is then calculated. This will help to determine how much paint and other materials you will require. You’ll have a good idea of how much your project will cost. Make sure your painter provides you with an estimate before starting work so there are no surprises later.