Any door villager can't open
I am making a jail for villagers but all of them can open the door and be free.
Is there any door a villager can't open?
Solution 1:
Yes. In fact, villagers can only open wooden doors.
Villagers can't open fence gates or trap doors, nor can they use buttons or levers, allowing you to use iron doors, iron trapdoors, or just about any redstone-based door mechanism without them being able to escape.