Updated 23 October 2026. Facts on this page come from minecraft.wiki, minecraft.net and the live Artemis PvP server; sources are listed at the bottom.
Piston Doors: 2x2, 3x3 and Hidden Doors Explained
A piston door uses sticky pistons to pull wall blocks out of the way when you press a button or step on a plate. The famous 2x2 'Jeb door' is a flush, hidden design about 72 blocks in size, while a 24-block seamless 2x2 has held the size record since 2013. minecraft.wiki's door guide warns that words like 'fast' or 'compact' tell you little: compare how long a door takes to open and close and how big it is instead.
What sizes of piston door are there?
| Door | Well-known design on minecraft.wiki | Notes |
|---|---|---|
| 1x2 | 8-block seamless door; 'Half Jeb door' (36 blocks, flush) | The 8-block door can be flush in corners and works on Bedrock with redstone dust in the empty block |
| 2x2 | 24-block seamless door; 'Jeb door' (72 blocks, flush) | The 24-block door is the smallest known 2x2 since 2013; a 240-block Jeb door works on Bedrock |
| 2x3 | Underground redstone dust | Pressure plates are a popular trigger |
| 3x3 | Entityless record design (2017-2025) | Beaten in 2025 by a 55-block door that uses entities |
| 4x4 | A 308-block design that opens in 0.4 s and closes in 0.3 s | Tip: hold upper pistons with a temporary redstone block while building |
| 5x5 and up | Larger designs | Some open in under half a second, others take about 2 seconds |
What do flush, seamless and entityless mean?
- Flush (or hidden): the door is completely hidden in the wall it is in. The 'Jeb door', first shown by Jeb in a sticky piston preview video, is the classic example.
- Seamless and flush doors together tend to be hidden from both sides.
- Other descriptors the guide suggests: entityless, slimeless, observerless, works on Bedrock, flush.
- When sharing a design, the guide asks for open time, close time, size in blocks, and whether it is seamless.
Do piston doors work on Bedrock?
Not always. Bedrock removed quasi-connectivity (pistons turning on from power aimed at the space above them) in the Better Together update and relies on observers instead, so many Java designs do not work there. Look for designs marked as Bedrock-compatible. See Java vs Bedrock redstone and pistons and observers.
Where do you build a base on ArtemisPvP?
Frequently asked questions
What is a Jeb door?
A flush 2x2 piston door about 72 blocks in size, first shown by Jeb in a sticky piston preview video.
Why does my piston door not work on Bedrock?
Bedrock has no quasi-connectivity, so many Java designs need a Bedrock-compatible version.
Sources
Every fact on this page was checked against these pages; the wording is ours.