Ezekiel 41:3 (KJV)

Afterward he brought me to the temple, and measured the posts, six cubits broad on the one side, and six cubits broad on the other side, which was the breadth of the tabernacle.

And the breadth of the door was ten cubits; and the sides of the door were five cubits on the one side, and five cubits on the other side: and he measured the length thereof, forty cubits: and the breadth, twenty 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.

After he measured the wall of the house, six cubits; and the breadth of every side chamber, four cubits, round about the house on every side.

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.

I saw also the height of the house round about: the foundations of the side chambers were a full reed of six great cubits.