Hull space
Every ship and base has hull space.
Every object you carry takes up a particular amount of that hull space. Many ships have very little hull space so making all of your gear fit can be a challenge. Hull Expanders are a quick and cheap way to add a little extra to your ship at the trade-off of extra weight. Bases can have one ship hull expander and unlimited base expansion units equipped simultaneously (although limited by number of workers) and can achieve a truly impressive amount of hull space. Some high-tech production bases have been known to have more than 2 billion units to store equipped items, commodities, workers, rations, construction materials and anything else needed for a well-maintained base. Hull can also be increased by Capacity Augmenters, and some Aura Generators. The mod Transcendental on some gear also increases hull space at the cost of a tiny bit of electricity. There are also new Scoops called holding scoops that increase hull at the expense of maximum shields. The skill Pocket Universe can also be learned on any character to gain hull space. Class skills also give a hull bonus to certain ship types.