Ezekiel 41:9

The thickness of the wall, which was for the side-chamber without, as high as the first story of this side-building, was five cubits; and that which was left was the place of the side-chambers that were within, or, "and five cubits the space that was left with regard to the house of the side-chambers," which was annexed to the house, apparently an open space between the building proper and the addition.