Tutorials/Jeb Doors

A Jeb Door is a piston door that is completely hidden in the wall that it is in. Jeb Doors come in two varieties: half and full. A half Jeb Door reveals a 2x1 passegeway (y x). A full Jeb Door opens to a 2x2 tunnel.

The World's Smallest Jeb Door
I got this design off a Youtube video (cit. needed). I then made it smaller and (optionaly) more convinient with 1.5.

Full
Opens up a 2x2 passeageway.

Half
Opens to a player-sized path.

Trivia

 * The Jeb Door was named Jeb because of Jens Bergenstein, head of the Minecraft team at Mojang.