Brand New 5'x 10' units with 4' wide roll up doors and 9' ceilings.
It fits furnishings of a mid-sized bedroom, including a queen-sized bed, a dresser, a TV and several small to medium-sized boxes.
Brand New 10' wide by 20' deep units with 7' tall by 9' wide doors.
It fits the contents of a multi-bedroom house, including several oversized items like a couch, a refrigerator, a washer/dryer and a dining room set or several large boxes.