Based on my (limited) experience with the two dogs we had and potty trained, giving them all the crate space actively harmed their potty training and prolonged the issue. They wouldn't hold their bladders because they could just go in the crate and get away from it. The idea isn't to limit to puppy to have barely enough room to lie down, but to give them enough room to curl up, stretch, turn around, etc. So, if the dog really has to go, they are still able to curl up on clean ground but it's not mentally comfortable because they can't actually get away from their mess. It will be a process of trial and error, I'm sure.I let Chase out every 3 hours. If you can't do that I wouldn't use a crate divider. I don't think it is fair to force the puppy to lay in waste.