1 Kings 6:6 ICB

[6] The rooms on the bottom floor were 7 1/2 feet wide. The rooms on the middle floor were 9 feet wide. The rooms above that were 10 1/2 feet wide. The Temple wall which made the side of each room was thinner than the wall in the room below. The rooms were pushed against the wall but did not have their main beams built into the wall.