Ezekiel 41:9

9 The breadth of the wall that [is] to the side-chamber at the outside [is] five cubits; and that which is left [is] the place of the side-chambers that [are] to the house.

Ezekiel 41:9 In-Context

7 And a broad place and a turning place still upwards [are] to the side-chambers, for the turning round of the house [is] still upwards all round about the house: therefore the breadth of the house [is] upwards, and so the lower one goeth up unto the higher by the midst.
8 And I have looked at the house, the height all round about: the foundations of the side-chambers [are] the fulness of the reed, six cubits by the joining.
9 The breadth of the wall that [is] to the side-chamber at the outside [is] five cubits; and that which is left [is] the place of the side-chambers that [are] to the house.
10 And between the chambers [is] a breadth of twenty cubits round about the house, all round about.
11 And the opening of the side-chamber [is] to the place left, one opening northward, and one opening southward, and the breadth of the place that is left [is] five cubits all round about.
Young's Literal Translation is in the public domain.