Planks are wooden blocks constructed using the lumber components boards and are used for building structures.
Planks are crafted from boards in the crafting grid. Three variants can be created, a block, a slab (half-block) or stairs blocks.
Planks can also be crafted from bamboo using bamboo stakes. Bamboo slabs and stairs cannot be crafted.
Planks are primarily used to create player structures. Planks made from different wood types have a different appearance, depending on the wood type used to create the blocks.
As of game version 1.11; boards replace planks in grid crafting recipes.