Iron Door

Iron doors in Minecraft are a special type of door that, unlike wooden doors, cannot be opened by hand but require a redstone signal to operate. Iron doors commonly generate naturally in structures like strongholds, and can also be crafted using 6 iron ingots. Iron doors are more durable than wooden doors, cannot be broken by zombies, and are more resistant to explosions, while being immune to fire and lava. They can be opened using various redstone components, including buttons, levers, pressure plates, and more complex redstone circuits. These redstone components send signals, causing the iron door to open or close. Because of their security and controllability, iron doors are often used by players to protect bases or create traps. Additionally, iron doors can form air pockets underwater in the Java Edition, and in both the Java and Bedrock editions, they can provide air pockets in lava.