Ezekiel 42:3-7 New American Standard Bible (NASB)

3. Opposite the twenty cubits which belonged to the inner court, and opposite the pavement which belonged to the outer court, was gallery corresponding to gallery in three stories.

4. Before the chambers was an inner walk ten cubits wide, a way of one hundred cubits; and their openings were on the north.

5. Now the upper chambers were smaller because the galleries took more space away from them than from the lower and middle ones in the building.

6. For they were in three stories and had no pillars like the pillars of the courts; therefore the upper chambers were set back from the ground upward, more than the lower and middle ones.

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

Ezekiel 42