hey :> i've done all sorts of weird and wonky doors in the past but i surprisingly haven't taken the time to make a true, flat, regular 5x5 piston door so i decided that since i just came back from a mini break from the game, it was the time to make one, and i'm quite damn satisfied with how it turned out :D
this door has targets, but no slime/honey blocks or observers are in it.

i'm planning on doing an eventual v1.2 version (which will be compacted but that'll wait for now, i'm already proud of this and my few attempts at that wasn't so successful.)

opening time: 1.2s
closing: 1.05s (1.5s if you count the part where it stops being seamless.)
21x21x7 = 3087 Blocks
non - locational

the first download link will download a map with just the door itself in a void
the mega download link will download the NBT file which you can then summon in any world, anywhere, with a structure block (there are many tutorials online on how to do it if you're confused)

check the update logs for older versions of the door.

unrelated to the door itself, but thank you all for the support on the other 2 contraptions i've uploaded here, means a lot to me :D
if you want, you can check out more of my creations on my yt, since i uploaded most of them there.