This is our new coop my hubby is building. It is 6x10 total and the interior will be 4x6. We can only have 2 hens here so hopefully this will be plenty of room. I will be allowing them to roam some during my lunch breaks - especially to help me keep bugs out of the garden! We used house siding as the sides and the floor - what I need to know is what is the best material to have in the floor of the coop (interior)? Something easy for me to keep clean. I'm guessing that eventually they will scratch up all the grass (weeds) in there too?