Ezekiel Chapter 41 Vs. 15

 The Inner Temple

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; Eze 41:15

the galleries thereof... Galleries were made on the sides and fronts of the temple and the other building in the separate place; these were ceiled with wood (Eze. 41:15-16).

These were terraced buildings with decorations. This area is 175 feet long also. It appears that each of these designated areas is 100 cubits or 175 feet long.

Ezekiel then recorded the overall dimensions of the temple proper (Eze. 41:12-15) and described its decorations and furnishings (Eze. 41:16-26). Immediately west of the temple was a structure described as the building facing the temple courtyard on the west side (Eze. 41:12). The function of this building is not explained.