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02:47
What looks best?
03:05
@TheNumberOne I like 2 and 3, with 2 slightly more than 3
 
15 hours later…
18:28
I like 2 and 4, in that order.
 
2 hours later…
20:39
Very compact piston door:
Also suffocation safe :D
I just realized the bottom redstone can be grossly simplified *.*
Actually, the bottom design doesn't activate both sides at once. Only the one on the same side as the pressure plate is activated.

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