Ezekiel 40:48-49

48Then he brought me to the vestibule of the temple and measured the jambs of the vestibule, five cubits on either side. And the breadth of the gate was fourteen cubits, and the sidewalls of the gate were three cubits on either side.

49The length of the vestibule was twenty cubits, and the breadth twelve cubits, and people would go up to it by ten steps. And there were pillars beside the jambs, one on either side.