My buns live in the attached garage with our two big aquariums and where the dogs sleep. I was wondering if I made them runs, could they be directly on the cold concrete? I've had guinea pigs on concrete with cardboard on the floor, but they got sick from it and died. Maybe there was a draft or their naked feet made them more susceptible? This is a new house, so the garage is a little different. Anyway, I found two buns out escaped running around. Luckily no cables chewed or any fights. Thus I've been wondering with their larger size, fur feet and ability to get back into their cage, can they have run of the garage and be ok? I was hoping to get wire fencing and making a large area fenced and letting a bun out into the area one at a time to play in. The area would go down along the 12ft in front of the cage row and go out maybe 4ft. I may divide it in half at 6ft to have two buns out at a time, since the cages are two long cages divided into 3 each. What do you guys think? Below is a picture I drew of the cages. Top is the current setup. Left cage empty, 2 Tsunami, 3 Daisy, 4 Pearl, 5 Stella & 5 Cricket. Cricket is getting a new home, hopefully soon. This will allow for the bottom picture setup. Left cage Tsunami, 2 Daisy, 3 Pearl & 4 Stella.