Wall area, net of the openings that count.
Paintable wall square feet per room from the plan's geometry and the ceiling height, with openings deducted per opening once they pass the threshold — a door doesn't deduct, a storefront does. Every number is a mark on the sheet you can point to.
- Net wall SF per room, ceiling height resolved
- Openings deducted per opening, over 100 SF
- A mark on the sheet behind every quantity