whyyyy
Let me guess, it was a custom ground texture to make things look smaller.
Textures look blown up.
And the doors are in different parts of the "1x1" brick. As in one door is in the center, and the other two are on the edges.
Still bullstuff though.
You should make 6 and 7 hight doors that would be very usefull
Exactly what i was thinking...