Quote from Smj
First off, uh... there seems to be a hole in your, uhm so called "3x3" door. Also, no one has any problems creating a 1 wide version of the door you posted.
Try making a flush, true 3x3 door and post that and make it as compact as possible. That would be a bit more interesting at least.
Quote from azarjeazar777
god, such a troll
Quote from MinecraftChrizz
I will try to make a REAL 1 wide 3x3 piston door.
I already found a way to make a 1 wide vertical double piston extender, so it should be possible.