My spare room is also a "Chicken Coop" we have the incubators and brooders in there at the moment, but up until a month ago we had 3 seperate kiddie pools full of different ages/sizes. Thankfully my DH raises puppies and we had several different heights of circular gates to go around the pools. Once the temps leveled out (no more below 50 degree nights) and my oldest chicks could fly to the top of the 4 ft tall gates, we knew it was time to go outside. We are planning on building a mobile brooder to use during the warmer months outside to cut back on all the dust, because I am having to vacuum every other day it seems to keep it out of the rest of the house.