I'm pretty new at being a chickie mom, so please don't laugh at a dumb question. Why do you need to put wood shavings on the floor? We're just getting ready to build our second chicken coop. In the first one we just had a wooden floor and obviously cleaning under the roost area got kinda "piled up" and messy. We moved, and I get to start again from scratch, so this time I was planning on elevating the coop about 18" off the ground and put something like a piece of ranch fence (with openings about 2"X3" under the roost area so the poop can fall through and be raked up for compost from outside the coop. Oh yeah, and the hens will have an area of about 500'X500' fenced in to run around in and do all the scratching they want to outside. So what, exactly is the purpose of having the wood shavings on the floor?