Ezekiel 40:10-12

Young's Literal Translation

¹⁰ and the little chambers of the gate eastward, three on this side, and three on that side; one measure [is] to them three, and one measure [is] to the posts, on this side and on that side.

¹¹ And he measureth the breadth of the opening of the gate ten cubits, the length of the gate thirteen cubits;

¹² and a border before the little chambers, one cubit, and one cubit [is] the border on this side, and the little chamber [is] six cubits on this side, and six cubits on that side.