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Here's what you'll need to put a single coat of paint on the walls of a room. Remember that this is only an estimate: you may need more or less depending on what colors you're choosing, how many coats you need, and what quality paint you're buying.

WALLS

This tool assumes that a smooth paint covers up to 350 square feet per gallon and a textured paint covers up to 300 square feet per gallon. Check the can to make sure the brand you're buying will cover that much. If it doesn't, you'll need to increase the number of gallons accordingly.

Square feet to be painted:


Paint required (smooth textured):


Paint required (rough textured):

WINDOWS & DOORS

For doors and windows, this calculator assumes a standard-width trim. If you have extra-wide trim, you'll need more paint.

WINDOW TRIM

Square feet to be painted:


Paint required:


Minimum paint calculated is .25 gallon, or 1 quart. If you need two quarts, it's usually more economical to buy a gallon.

DOORS AND DOOR TRIM

Square feet to be painted:


Paint required:
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