Planks can be used to construct a support style for buildings as well as homes, huts, and shacks. Planks of wood are a sustainable resource. Wood Planks are the easiest non-natural block to obtain. They function as both a material for structures, as well as a crafting ingredient.
Wooden planks can be created by putting a block or more of wood in the crafting grid. Wooden planks are a renewable resource. Despite being easily burnt down, Wood is easy to obtain in biomes where trees can be found.