Is there a constant that you can multiply the floor sq. ft. by, to get paint and primer, at say, 300 and 400 sq. ft. per gallon, for a given wall height??
Obviously, each wall height would have a different constant, and cathedral ceilings and whatnot would not conform. I'm just assuming that those of you who do painting exclusively must have a quick way to estimate. If it's not something anyone wishes to disclose on a public forum, I understand.
The closest I came up with is 153 as a constant, for 8ft walls. I need to run a bunch of other dimensions to see if that holds up.
I hope some of this makes sense. End of a long, frustrating, day.