Hello, like sunjean said you can build chests using the catalog. The catalog can be accessed via the shipping chest on the right side of your house. As for inventory space there will eventually be quests to expand your inventory even more. I believe by the time all is said and done you will have 30 inventory slots. At the moment the quests just aren’t in the game. I think I’ll need to move up cloth crafting so that these quests can be implemented sooner rather than later.