Ezekiel 41:5

Then went he inward, and measured the post of the door, two cubits; and the door, six cubits; and the breadth of the door, seven cubits.

So he measured the length thereof, twenty cubits; and the breadth, twenty cubits, before the temple: and he said unto me, This [is] the most holy [place].

And the side chambers [were] three, one over another, and thirty in order; and they entered into the wall which [was] of the house for the side chambers round about, that they might have hold, but they had not hold in the wall of the house.

And [there was] an enlarging, and a winding about still upward to the side chambers: for the winding about of the house went still upward round about the house: therefore the breadth of the house [was still] upward, and so increased [from] the lowest [chamber] to the highest by the midst.