A poop board doesn't have to be wood necessarily. I didn't care for a wooden one they got harder and harder to scrape and occasionally would have the same issue you would with it being frozen to it. But we don't have nearly as harsh of winters as you. I realized a galvanized metal poop board is what works best for me. It's scrapes almost effortlessly. So much so that sometimes I even scrape it out every morning because it so easy. I use metal roadway signs. But my chickens aren't smart enough to cover up their poop with wood chips. And the pile they were able to make in the one week I didn't have a poop board. My goshThanks. I see you are also from MN, so how do you clean a wood board with frozen poo on it? I have a wooden ladder for the pop door which gets poo on it and I have to use a hammer and chisel to break off the poo.