Here's my best recollection of the interior layout. (We initially ruled this out property out and are now reconsidering, so it's actually been several months since I've been inside.)
*The exterior dimensions of the building (in black) are exact measurements. Everything else is an approximation.
*The thick red lines denote sliding, 2 inch thick, metal doors.
*The hallway in front of the cells is divided in two by a second set of bars, so that inmates couldn't reach anyone standing on the exterior side.