Ezekiel 41:15

And he measured the length of the building over against the separate place which was behind it, and the galleries thereof on the one side and on the other side, an hundred cubits, with the inner temple, and the porches of the court;

Cross-reference

Ezekiel 41:17 continues the description, noting the paneling from floor to above the entrance, part of the same architectural survey.

Ezekiel 42:3 also mentions galleries, using the same architectural term to describe the temple's side structures.

Ezekiel 42:15 concludes the measuring of the inner temple area, completing the survey begun here.