I'm turning my old shed into my ducks new humble abode. It's decent size and will house my 10 Rouen and Pekin. They will free range during the day and be secured in the shed at night. The floor is wood. What does everyone find works best for flooring? I'm considering putting vinyl down over the wood so it doesn't rot, then trying the deep litter method over that. I've heard some use pea stone, pine shavings, straw, sand, etc. What do you guys find works best for keeping the coop clean and the smell to a minimum? Any and all suggestions greatly welcomed!