How to make 2x2 flush piston door (LESS THAN 20 SEC NO CLICKB8)

It only takes you 20 sec to build this flush piston door, literally the simplest design there is.
If you found the tutorial helpful make sure to like and subscribe, thanks for watching, have a nice day! :)

Shaders: Sildurs Vibrant Shaders v1.21 Extreme
Resourcepack: mix of Pewdiepack, Vanilla Normals Renewed 1.13 master and Orebit

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