Ezekiel 40:13

The guardroom 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 facing inward was one rod.

It had three guardrooms on each side; and its side pillars and its porches had the same measurement as the first gate. Its length was fifty cubits and the width twenty-five cubits.

Then a measuring rod like a staff was given to me, saying, “Get up and measure the sanctuary of God and the altar, and those who worship in it.