Parallel
Ezekiel 41:7
King James Version (1769 Blayney revision, with Apocrypha) · Berean Standard Bible
And there was an enlarging (note: Heb. it was made broader and went round), and a winding about still upward to the side chambers: for the winding about of the house went still upward round about the house: therefore the breadth of the house was still upward, and so increased from the lowest chamber to the highest by the midst.
The side rooms surrounding the temple widened at each successive level, because the structure surrounding the temple ascended by stages corresponding to the narrowing of the temple wall as it rose upward. And so a stairway went up from the lowest story to the highest, through the middle one.