Ezekiel 42:7-11

As for the outer wall by the side of the chambers, toward the outer courtyard facing the chambers, its length was fifty cubits.

For the length of the chambers which were in the outer courtyard was fifty cubits; and behold, the length of those facing the main room was a hundred cubits.

And below these chambers was the entrance on the east side, as one enters them from the outer courtyard.

In the thickness of the wall of the courtyard toward the east, facing the separate area and facing the building, there were chambers.

And the way in front of them was like the appearance of the chambers which were on the north; according to their length, so was their width, and all their exits were according to their building plans and openings.