Ezekiel 40:6-7

6Then he went to the gate which faced 1east, went up its steps and measured the threshold of the gate, one rod 2in width; and the other threshold was one rod 3in width.

7The 4guardroom was one rod long and one rod wide; and there were five cubits between the guardrooms. And the threshold of the gate by the porch of the gate 5facing inward was one rod.