thats what i have in my wee aviary , concrete floor running to the far corner where i put a brick with holes [facing brick ] so i can hose it out ,, i hose it out with bleach [let it dry], but the bleach drainage from the holey brick cleans all the outside slabs as well ,then hose the lot down only diff, i put plywood on the floor so i can take it out and let the sun dry it , but i dont really like it as it can get damp under the boards , so changing it