I would like to suggest that the amount of storage (slots) a container holds should scale with the size of the container. Also I had an idea for an item that when attached to an existing door (or other block) turns that door into a storage, or a new door item that is a storage.
What I mean to say is easier explained by example: say I have created a grain silo in game, visually it looks like a silo but as far as the game is concerned it's a big hollow tube. Now let's say I add a door/ access hatch into the silo and then add this new theoretical door storage item thingy to it. Now when I open the hatch a "chest" UI opens and I can "store" all my corn in the silo. These "storage doors" could have increasing crafting costs for higher tier (more slots) storage doors. Another example would be kitchen/bathroom cabinets. It wouldn't necessarily have to attach to (or be) a door, it could be a tool that modifies any block to be a storage container, really the possibilities are endless, storage boulder, tree hollow, hidden floor board... Or it could work similarly to the blueprint tool, by having a tool that designates a volume as a "storage" area that you can build around essentially making ones own chests. Then we can talk about filling that area will a visual representation of what's in the storage, like a crate of apples or a open air dry corn silo, which would probably save PC recourses as opposed to placing 100 apples in a barrel for decoration.
