I am building a new chicken coop and it is going to have a concrete floor but I have a lot of other stuff I have to get done this year and don't think I will have time to build a concrete floor. So I was just going to let the Chickens live on the dirt floor but the dirt will get really messy and muddy, so I was wondering if there is something that I could use for the floor? I don't want to use wood because it rots. What does everyone use? Does it work good? Thanks!