John Gill Commentary Ezekiel 40:33

"and the lodges thereof, and the posts thereof, and the arches thereof, according to these measures: and there were windows therein and in the arches thereof round about; it was fifty cubits long, and five and twenty cubits broad." — Ezekiel 40:33 (ASV)

And the little chambers thereof
These, and what follow in this verse, are exactly the same with those of the south gate of the inner court, (Ezekiel 40:29).