Anyway the basic idea is that you have to levers that can control the door.
How to make a piston door open and close from both sides.
You will need to put all of this underground if you want it hidden.
Piston doors that open close from both sides.
Step on both pressure plates at once to prompt the doors to open then walk through your door.
When you activate the redstone signal by pulling on the lever the doors close.
A longer video than normal showing in detail how to make a double piston door that is openable from both sides and has hidden redstone.
When the lever is off the door is open.
Test out your door.
You can build around your door to disguise the mechanism.
If you want you can continue and add a toggling button which will make it so when you press the button it will open and when you press it again it will close.
Flicking it down will open the door flicking it up again will close it.
You open it from one side close from the other and vice versa.
But this only works one way.
This is a video response from someone who commented on a previous video.
You should be able to get through without any trouble.
To see how this door will function in a minecraft game add a wall around the lapis using iron.
If the video help.
This design completely hides the sticky pistons giving the wall and door a sleek finish.
This is a minecraft tutorial for a piston door that opens on both sides with a lever.
Due to popular demand here is how to open the hidden door from both sides.
Change the lever to the outside wall.