One of the most commonly asked questions is how to dispose of leftover household paint. But rather than dealing with leftover paint, why not buy the amount of paint you actually need? To figure this out, simply measure the walls and multiply the length times the height to estimate the square footage. One gallon equals about 350 square feet of one-coat paint coverage. You can also use online paint calculators to help you determine what you need –- these calculators can predict down to the quart.
ANDREWS MCMEEL SYNDICATION