The wooden door is the lowest tier of doors. Players can toggle them to be opened or closed by hitting it. Only the person that placed the door and teammates can use it.
Doors can be costly. However, it's a necessary precaution for defense when making a base. Doors can enable players to protect chests, separate compounds, or layer for additional fortification.
Having multiple doors in a base can help as they enable players to enter and exit the base with convenience.
Any tool can break the wooden door if used long enough. Because of this, upgrading the door to stone before placement is worthwhile, as losing a door is worse than losing a wall due to its cost.