Stronghold/Structure/Large Room

Stronghold Large Room and Variations
Stronghold Large Rooms can have up to four exits (including the entrance to the room), and come in four variants, Large Empty Room, Stone Pillar Room, and Fountain Room.Since the exits come in four different variants and the rooms have up to four exits, I will show each variant in the build.

Blueprints
NOTICE:Since there is multiple exits possible, the build will show multiple variants as "Layer 2a" and "Layer 2b." "a" is for no entrance, "b" for iron doors, "c" for wooden doors, "d" for iron bars, and "e" for a plain entrance. The sides can be mixed and matched.

Pillar Room
This room is exactly like the empty room but with a decoration in the middle, so for simplicity's sake, the entrances will not be there.

Fountain Room
This room is exactly like the empty room but with a decoration in the middle, so for simplicity's sake, the entrances will not be there.