When calculating how much primer you'll need, you can use a similar equation to the one you use for paint. While a gallon of paint covers roughly 400 square feet (depending on the factors ...

On my quest for the answer, I searched "cost gallon paint" on a major home center website. The nearly 2,000 results indicated a broad range of prices for a gallon of paint.

Designers Use This 1-Gallon Paint Trick to Make Any Room Look More Luxe. Story by Anna Logan • 1w. E ffective paint use has long been the design world’s great equalizer.