I saved money on mine by building it like a litter box. Raised sides and filled with all purpose sand, then sprinkle some pdz on top. It scoops so easily and nothing ever hits the boards themselves. It's my favorite feature in the coop! We actually added an extension on the coop this year so we had enough room to put it in and easily get in to clean it. Last year, I had to change out the bedding every week or so. There hasn't been a single piece of poop on the bedding since I installed the poop box.