PAINTING HACK #2: HOW MUCH PAINT TO BUY?
It’s important when buying paint that you buy ALL that you will need for that room prior to starting. If you underestimate the quantity, you run the risk of the next batch of paint you buy not matching your existing paint already. A good rule of thumb for how much paint to buy:
Multiply length times width of the area you will be painting to calculate the square footage. For most surfaces and colors, you need a gallon of paint per 400 square feet.
