Wooden Door

The Wooden Door is a placeable object, similar to other furniture, with the added benefit of preventing the passage of enemy NPCs. It can be placed in any space so long as it is exactly 3 blocks high, with a ceiling and a floor.

Town NPCs will open and close doors as they wander about. Players can do the same by right-clicking on them. Enemy NPCs will not open doors except for Goblins, Skeletons, and Angry Bones. During a Blood Moon, Zombies can also open doors.

Each door sells for 40 copper.

Tips and tricks

 * Doors open to the left or right based on which direction you face, rather than the direction you are coming from. For example, if a player stands to the left of a door and faces left, the door will open toward the player - to the left. If the player doesn't move and then turns to the right and opens the door, it will now open to the right.
 * Putting furniture (even the second door) on one side of the door prevents it from being opened in that direction. This is useful to keep houses safe from Zombies during the Blood Moon or Goblins, as they'll always attempt to open the doors inward, while still allowing NPCs to go in and out as they please.
 * Doors can also hold back water.
 * Doors will break automatically if exposed to lava.

Trivia

 * Even though it is called a wooden door, which would make you think that there would be other types of doors, it is the only door available. This may hint at future updates.