Our babies are 2 weeks old, so we have to get started on our coop! Couple of questions.....coop will have attached run, do we need to put something down on top of grass? My husbands concern is they will kill all the grass, then it will just be a muddy mess everytime it rains. Will grass survive 3 chickens? Put sand or something else down? Next question, I know cedar is bad for chickens, but what if it's just used as trim on the outside of coop and stained? Trying to make it look like a little version of our house. Husband also wants to use T-something siding? Any issues with that as long as good ventilation? Anyone with answers greatly appreciated!!!!