A 5x5 design that shoves in as much crap as possible, while still having walkable* floor tiles and unblocked wall tiles:
#########
#╔═════╗#
#║T,,FF║#
#║C░.?.║#
#║,.B..┼.
#║.?.W.║#
#║FF,,,║#
#╚═════╝#
#########
IMPORTANT NOTE: DOORWAY MUST BE ON EAST/WEST WALLS, AND WALLS MUST BE 2 TILES THICK. Failure to do so would cause the wall engraving to be on the incorrect side of the room and/or door, as per the rule on the
Designation wiki page.The insides can be rotated or re-arranged in whatever manner, but generally:
T Table
C Chair
B Bed
W Well
F Furniture (Bags, chests, cabinets, armor/weapon stands)
, Additional, optional furniture positions
? Path-blocking or other furniture (statues, windows, supports, natural stone wall, constructed wall of _, etc)
. Floor, the two between the door/bed having a rope "carpet" with attached pet (if any)
# Undug and rough natural stone walls, or just undiscovered stone.
░ Possible position for a water (or FUN magma) fall! Or just another random peice of furniture.
If the waterfall IS being used, you can just have a huge collumn of rooms that all use the same waterfall hole position and just have the water drop through all the rooms at once; though doing this prevents you from using a well, since they block each other if you stack them. If you ARE using a well, then you have three options:
1. Dig a ramp-channel where the well will be, designate as a pond, and dump water in it, building the well on top. Pushes the room below one level down.
2. Have the well be fed by the water fall directly, without a way to store water. Either pushes the room beneath down one level, or in front of where the well is positioned. Further waterfalls beyond the first would be difficult to make without pushing the room down ANOTHER z level.
3. The same as 2, but dig an additional vertical shaft directly beneath the well of arbitrary depth so even if the waterfall stops, the well will have some water. If you want a room that has a waterfall and water storage fed by said waterfall, you'll have to spend 3 or more z levels on the plumbing.
For obvious (FUN) reasons, i didn't include the option of having a magma heating/garbage disposal hole in the room. Though i suppose you could put it where one of the ? marks are; and if you have a running water fall you may as well make use of the z level below the room that's required for it.
(*for the OCD in me that says "OMGWTF YOU CAN'T WALK OVER A CABINET!)