Ezekiel 40:21; Ezekiel 40:33

21 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.

33 Its guardrooms also, its side pillars and its porches were according to those same measurements. And the gate and its porches had windows all around; it was fifty cubits long and twenty-five cubits wide.