Paint coverage varies depending on the absorbency of the surface and how rough or uneven it is. Raw canvas, stucco, cement and rough wood will get low coverage. Gessoed and previously painted surfaces will get high coverage. Approximate coverage is: gallon, 240-320 square feet; quart, 60-80 square feet; pint, 30-40 square feet. Allow extra paint when mixing colors. Theoretical spreading rate @ 1 mil dry film thickness is 600 square feet per gallon.