Most of the younger and older dogs are usually kept in rooms like these. They measure about 4 1/2 ft by 4 1/2 ft and they are well ventilated, and there are small drains located in the center of the rooms (not visible in this pic) where they can be scrubbed down with ease and more frequently. The doors to the rooms, are made with two parts, a top and bottom part, as sometimes the top parts of the doors need to be closed to keep larger dogs from jumping out.