It's a throwaway set that will only be used on rare occasions. Unless you plan to throw a lot of people in jail it probably won't pay off to redress an actual room.
I could be tempted.
My next construction project is a corridor, and the brig is right off of it. I may decide to put a two-sided brig in and redress it as needed for an exam room or crew quarters or whatever else is needed as dictated by the script. Honestly, I never build anything unless I'm going to use it.
Kelso's excellent script calls for the brig, the exam room, and even can make use of the corridors. The corridors also make an appearance in our next vignette, "Red Sky at Night."