Cross reference
Ezekiel 42:5
5 Now the upper chambers were shorter; for the galleries took away from these, more than from the lower and the middlemost, in the building.
Ezekiel 41:7
7 And the side-chambers were broader as they encompassed `the house' higher and higher; for the encompassing of the house went higher and higher round about the house: therefore the breadth of the house `continued' upward; and so one went up `from' the lowest `chamber' to the highest by the middle `chamber'.