You should be able to get through without any trouble.
How to make a piston door open and close from both sides.
Step on both pressure plates at once to prompt the doors to open then walk through your door.
This design completely hides the sticky pistons giving the wall and door a sleek finish.
Anyway the basic idea is that you have to levers that can control the door.
You open it from one side close from the other and vice versa.
Test out your door.
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.
You will need to put all of this underground if you want it hidden.
This is a minecraft tutorial for a piston door that opens on both sides with a lever.
True but i had to start somewhere.
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.
You can build around your door to disguise the mechanism.
If the video help.
Now just go on youtube and look for something like xor gate minecraft and you ll be on your way to a working iron door that can be open and closed from both sides.
Piston doors that open close from both sides.
But this only works one way.
To see how this door will function in a minecraft game add a wall around the lapis using iron.
Change the lever to the outside wall.
Due to popular demand here is how to open the hidden door from both sides.
Flicking it down will open the door flicking it up again will close it.
When you activate the redstone signal by pulling on the lever the doors close.