How it is worked out
Wall area is each room's perimeter times its height, less about 21.0 ft² for each door and 15.0 ft² for each window. Ceiling area is length times width. Each coat of paint covers about 350.0 ft² / gal, so the calculator multiplies the area by the number of coats and divides by that.
How our painting takeoff service works →Common questions
How many coats of paint do I need?
Two coats for a repaint in a similar color, and three for a big color change or fresh drywall after a primer coat. Use the product's own coverage on the can when it differs.
Can you work out the paint from my plans?
Yes. Send the PDF plans and Sigma Build measures every wall, ceiling, door and window from the drawings and prices the paint job at your rates.