Man it's been a while since I've done one of these! Anyway, this door is simple to build in any edition of Minecraft.
Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.
Step 1: Mechanism
Step 2: Hallway Base
Place the holes where appropriate
Step 3: Finish and Set
Place gravel/sand in the hole to your left to open. Hope u njoyed!