Columbia-Class Carriers
Spacecraft carriers are some of the biggest spacecraft currently being built in the Milky Way. Easily three-quarters of their volume is capable of being given over to carrying a hull full of the two smallest warships: corvettes and destroyers. They have extensive berths, heads, and galleys for not only their own crew, but the crews of the ships they carry. The crew complement of a spacecraft carrier is only around 150, but they are capable of carrying an additional complement of significant size, upwards of 500, if the situation so demands.
Should emergency evacuation of a small celestial body be required, as many as 10,000+ persons can be brought aboard each carrier, though conditions will be extremely close. This passenger load cannot be maintained long due to limited consumables, and a carrier pressed into such service must have a safe destination relatively close by, to which the refugees may be offloaded.