I wasnt really sure where this idea came from, nor what to call these.  Their intention was to serve as sort of walls for my section.  Most of these were grungy already, so there wasnt really a need to dirty them up.  As with the platforms, i did put on a coat of satin-touch spar urethane to all the wood.  It gave it a nice satin texture which was soft to the touch and eliminated a lot of the rough areas.

All these were bolted to a bottom piece of MDF using L-brackets on the "back" side, and bolts were used to hold the pieces together in the center

Later, heads or cloth were hung from them