Ezekiel 40:48-49

Then he brought me to the entrance porch of the temple building, and he measured the gateposts of the porch. They were five cubits thick on either side, and the width of the gate was fourteen cubits. The sidewalls of the gate were three cubits on either side. The entrance porch itself was twenty cubits long and twelve cubits wide. There were ten steps leading up to it, and there were pillars by the gateposts, one on either side.