Today on this inscrutable's I will show you how to make a redstone 2x2 piston door without further or do let's jump straight in!
Step 1: Starting Out
So first place to sticky pistons on top of each other like on the picture, skip a block and place 4 blocks of choice like the picture then skip one and again stack the pistons on top you guys can see.
Step 2: Follow the Picture
pretty much follow the picture and your done!