Use the same door to take your puppy outside. He will learn to go to that door when he wants to go outside in the future.

2torial #0827: Learn2 Housebreak a Puppy Set up a routine Dogs, especially puppies, thrive on routine. If you stick to a strict schedule of meals, walks, sleep and play, both you and your dog will know what to expect. You'll know exactly when your dog will most likely need to go, and you'll be prepared to get him outside in plenty of time, thus avoiding accidents and--even more importantly--instilling good habits. As you set up your schedule, remember that puppies run like clockwork, and they have to relieve themselves at specific times: 1. When they first wake up in the morning or after a nap 2. Within 20 minutes of eating 3. After active play 4. Before they go to sleep If at any time you take your puppy out and he doesn't go, put him back in his crate and try a little later. Here's an ideal schedule (remember not to vary it on weekends): Step 5