Pros & Cons of this idea: I was thinking of designing my Chicken House on a slightly sloped floor with a screened drainage hole. The floor will be sealed with a few coats of an exterior marine spar varnish (like what’s used on boats). Each day, I. An open the door, rinse it out with a water hose and the screened drainage hole will drain the waste water quickly and efficiently. This idea will do away with the need for any shavings, etc. To deal with the accumulation of amonia, to fans will be utilized, one on each end of house (above roosting height and with a screened ceiling to keep the birds from flying up there) to bring in outside air and blow out the amonia. Plus, I’d keep it rinsed out daily. The coop will house between 18-20 birds.