What exactly didn't work? I'm guessing you are missing the lip key, which has to have a value = (thickness (in this case height) of entity - distance you want entity to travel) which would be about -224.
That sounds exactly what I needed. Thanks a ton.

Just door with kill player possibility and huge damage? =)
Already have that part figured out. Thanks though.

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EDIT: Got it working the way I wanted. As for the second part, how do I make a door open sideways?