How it is worked out
Wall area is each room's perimeter times its height, less about 1.9 m² for each door and 1.5 m² for each window. Ceiling area is length times width. Each coat of paint covers about 12.0 m² / L, 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 colour, and three for a big colour change or fresh plaster after a sealer 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.