Ezekiel 42:4-6

New Catholic Bible

⁴ In front of the chambers, there was a passageway, ten cubits wide and one hundred cubits long, and the entrances to the rooms faced north.

⁵ The chambers on the upper level were narrower than those on the two levels below because the galleries took up more of the width on the upper level. ⁶ For they were divided into three stories and they had no pillars as the courts had. Thus, the upper chambers were more narrow than those on the lower and middle levels.