Now viewing scripture range from the book of Ezekiel chapter 42:3
through chapter 42:6...
3 Over against the twenty [cubits] which [were] for the inner court, and over against the pavement which [was] for the utter court, [was] gallery against gallery in three [stories].
4 And before the chambers [was] a walk of ten cubits breadth inward, a way of one cubit; and their doors toward the north.
5 Now the upper chambers [were] shorter: for the galleries were higher than these, than the lower, and than the middlemost of the building.
6 For they [were] in three [stories], but had not pillars as the pillars of the courts: therefore [the building] was straitened more than the lowest and the middlemost from the ground.