That actually was my wife’s thought after she looked at my KICKR mat. It would probably be good for at least the rolling and stretching. Probably too small for anything where she needs to move around a lot but thats not really the problem we are trying to solve, it’s the foam rolling that takes a toll on the rig.
Hmm, hadn’t thought about the rubber grid stuff, thanks. I probably have enough extra tiles to stretch across the room but I’ll have to see if it passes the WAF as it would eliminate any walkway to the other side of the room.
As for taking out the carpet, it crossed my mind. I actually wanted to rearrange the room and make the back half it’s own area with the sectional and a really big screen and all my AV stuffs and then make the front half of the room the workout area with it’s own (current) tv. Then the two halves of the room shall never meet. 
unfortunately the wife looked at me like I was crazy when I said we could rip out carpet for the workout side of the room. I think part of that is this room will also be multi purposed as a kids play room eventually.
Thanks similar to benmcduffs idea above. Right now she is using a thick workout mat she has but it’s not ideal for rolling as its too soft and thick. I think if I could find a mat like my KICKR mat but a little larger that would probably work for most of our concerns.