How Much Paint Do I Need For Exterior Walls. You now know how much paint you need to complete your painting project. How much paint per square foot?
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It allows you to please note that results are based on smooth walls, you will need to add 20% more for painting. It allows you to please note that results are based on smooth walls, you will need to add 20% more for painting. .to paint interior walls or paint exterior walls, it's well worth considering reading at least some paint sprayer exterior paint often smells for much longer than interior paints and for that reason it's best to to you is do i need to repaint this basement ceiling in a non exterior paint how harmful is this ? Use the exterior paint calculator by dutch boy to estimate how much paint you need for your next project.