Enter your project dimensions to estimate paint coverage, primer amount, and how many gallons or quarts to buy.
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A common rule is about 350 to 400 square feet on a smooth, primed interior surface. Textured or porous surfaces need more.
Usually yes. Buying a little extra helps with touch-ups and future repairs and protects you from running short.
Cabinets usually need less total paint but more prep and often two solid coats. A small kitchen often needs around 1 to 1.5 gallons of cabinet paint plus primer.