It sits on top of the floor, so it can go inside any coop if there is space for it. It's about 8 inches tall? Maybe ten, can't remember if those boards are 2x8 or 2x10. The ducks have no issue reaching the water, or jumping on it. It prevents them from playing in it again, the issue I can into when I set the water into a much deeper pan. They could still play in what they threw out, and it still soaked the bedding around it. This design (and the wire floor option in the coop floor, or an added on "screen porch") prevents them from playing in the water a 2nd time and throwing it farther.
I was worried about wasted food after it fell through, so food only goes on it when it rains and the outside food gets wet. The chickens however, will chase me to the dump site and eat the "mash". So really, no waste.