I have wood flooring in mine and it seems to do fine.1 of them has treated with horse mats on it and it does good.I remove the liter then drag out the mats wash them let them dry and then put then back in.I'm building 2 other coops and I am using tongue and groove maple flooring.I will put some kind of finish on that to protect it.I use the deep liter method and I have found that I really don't have a problem with the poop sticking to my flooring.i keep plenty of shavings on the floor and they keep it turned over.