From Starbounder - Starbound Wiki
It has 16 slots and is not stackable.
The crafting schematic for this item can be found in Stone Chests which are located in the Alpine biomes.
|3 x 100%|
|Apex :||A heavy stone chest.|
|Avian :||The hinges on this chest grind as it opens.|
|Floran :||Ssstone chesst keep Floran goodiess ssafe.|
|Glitch :||Reflective. It would not take much force to break into this chest.|
|Human :||A chest too heavy to move, even when it's empty.|
|Hylotl :||This chest is hard stone but may contain delicate treasures. A metaphor for the heart.|
|Novakid :||A rock you can put things inside.|