With the price of paint costing more and more every year, you don’t want to waste money buying too much paint. But nobody likes to run out with only half a wall to go, either. So it’s important to save time and money by buying the right amount.
Here’s a simple way to calculate how many gallons of paint to buy.
First, calculate the wall area of your room.
- Multiply the height of each wall by its width (don’t subtract for doors and windows unless they take up more than half the wall).
- Total the figures for all the walls.
- Add 10 percent for future touch-ups.
- For two coats (like dark colors), double the number.