Ezekiel 41:5

Next he measured the wall of the temple to be six cubits thick, and the width of each side room around the temple was four cubits.

Note 4 (long) cubits is approximately 7 feet or 2.1 meters.

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.

Then he measured the wall of the house, six cubits; and the width of every side room, four cubits, all around the house on every side.

Then 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.