How to build a 2x2 piston door in Minecraft

This is the classic flush 2 by 2 door: closed, it looks like a solid wall; step on a plate and four blocks slide into the walls. We built it from the plan below on a Java Edition 26.3 server and opened it from both sides before writing this guide.

Orientation used below: the doorway is 2 blocks wide and 2 blocks high, in a wall that runs left to right. The plan has 5 layers, from 3 blocks under the floor up to the top of the doorway.

Mark the doorway, then dig the floor out to 3 blocks deep along the wall line, from 3 blocks left of the doorway to 3 blocks right of it, and under the 2 blocks in front of and behind the doorway (layers 1 and 2 of the plan).

1. On the bottom layer, place a row of solid blocks under the wall line and under the plate spots (layer 1).
2. Put Redstone Dust on top: a line of 6 under the wall line, from 2 blocks left of the doorway to 2 blocks right of it, plus one dust under each of the 4 plate spots (layer 2).
3. At both ends of the line, one more block further out, place a solid block at the same height as the dust. The end of each dust line points into it.

Stand a Redstone Torch on top of each of those two end blocks (layer 3). They will sit in the floor, right under the block that goes behind the bottom pistons. A lit torch powers the block above it. When a plate powers the dust, the dust powers the end block and the torch on it turns off.

Fill the rest of the floor back in around the torches (layer 3), at the same height as the floor of the room. Leave the torches where they are: the block placed above each one hides it.

1. On each side, one block away from the doorway, stack two Sticky Pistons with their heads facing the doorway (layers 4 and 5). A piston's head points toward you when you place it, so stand in the doorway.
2. Behind each bottom piston, right on top of the torch, place a solid block.
3. Put one Redstone Dust on that block, next to the top piston. Leave it as a cross: a cross powers all four sides.

The torch powers the block above it, that block pushes the bottom piston, and the dust on it pushes the top piston. All four pistons extend as soon as the torches are lit.

1. Place 4 blocks in the doorway, against the piston heads. Use the same block as your wall; pistons cannot move Obsidian, chests or other blocks that pistons refuse.
2. Put a Stone Pressure Plate on each of the 2 floor blocks in front of the doorway and the 2 behind it.
3. Step on a plate: the pistons pull the blocks into the walls. Step off: the door closes about a second later.

Do not stop inside the doorway: the closing blocks push you out.

The door uses no quasi-connectivity and no 0-tick pulse, the two mechanics that usually break Java doors on Bedrock Edition. We tested it on Java Edition 26.3 only, so build a test copy in creative before using it on Bedrock.