Ezekiel 40:21-22

21Its guardrooms, three 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 was twenty-five cubits.

22Its windows and its porches and its palm tree decorations had the same measurements as the gate that faced toward the east. It was reached by going up seven steps, and its porch was in front of them.