Yechezkel 41:8-10

Orthodox Jewish Bible

⁸ I saw also the height of the Beis [HaMikdash] all around; the yesodot (foundations) of the tzela’ot were a full rod of six cubits long.

⁹ The thickness of the wall, which was for the tzela toward the outside, was five cubits; and that which was open was the space at the end of the tzela’ot of the Beis [HaMikdash].

¹⁰ And between the leshakhot was the space the width of twenty cubits around the Beis [HaMikdash] all around.