Take for example, I charge 1.75 sq foot for 10x10 room with 8 foot ceilings. By my calculations this would cost $175 with floor space sq foot, but with you method, it would cost $576.00 That is outrageous. Of course I didn't subtract the windows and doors, which is another thing that makes no sense. Cutting in around those windows takes more time, then just rolling a wall.
Hired a paint contractor w/good recommendations, this room was 12x12 tops. Caulking, sanding and caulking 2 window sills, painted ceilings and walls 1 coat but 2 different colors, plain 1/4" x3" baseboards & 4 doors oil-based trim, w/2 doors only 1 side. We provided paint at $180, he ended up hiring day laborers & had to redo. Took 14 days, looks good now but need to paint more and I'm scared b/c we had a contract & he tried to extort more very very threatening & I have to now work by sq. ft. in other areas, don't want to be nickel & dimmed for every time repair (he charged $50 because our dog's nose touched a wet wall but they let him in)! Any ideas from others in my area? Actually done in 2014, doesn't allow for it.
"I had Sam and his team come in to repaint our kitchen cabinets that were originally a dark wood stain. He cleaned, sanded, primed, and put on 2 coats of sheer white on both the doors and frames of the cabinet and they came out great. The kitchen is much brighter and even up close it is hard to tell that the original cabinets were not white. They were prompt and very communicative over the phone. We may soon hire them back to paint the kitchen next."