I actually have a puppy play pen I could set up but it would have to be in the house. These guys aren't even fully feathered yet.I use a sterilite tub to start, then the big guys have a 6x8 tarp on the basement floor with boxes for walls. For clean up, we just move or replace the walls onto a second 6x8 tarp, then bundle the tarp and dump it out. Works really well actually.