How large are the manned cabs? Are there multiple rooms/areas such as a bathroom, food prep, and sleeping quarters?" - The Bevrwolf
Cloud Imperium
The manned cabs differ significantly depending on the ship, although all of them have some form of the 'standard luxuries.' The Hull A is more like a tractor trailer, with a small sleeper area, while the Hull D or E are large enough to have multiple decks.
starfarer.space · Q&A: MISC Hull A