Wood is one of the basic resources in the game. It comes in 3 forms namely: Logs, Planks and Sticks. It is used in many recipes throughout the game.
Logs come from chopping down trees with an Axe or Makeshift Hatchete.
Planks come from processing Logs in your inventory.
Sticks come from processing Planks or can be found in bushes. They can also be obtained from salvaging broken wooden boxes.