Chest

Chest is a block. It is used as a material for some Furnitures.

Storage
It can be placed on your Private Island as a storage, similar to its vanilla Minecraft function.

Furniture
The level indicated is the carpentry level required and even if obtained prior to becoming that level will not be able to be placed down.

Trivia

 * A chest cannot be exploded by TNT while the player has its GUI open.