Can puppies use a PlexiDor?

Once puppies get big enough to scamper about, they’re likely to figure out the pet door and how to open it.

You may need to separate the puppies from the door to keep them safely inside. Maybe keep them in another room, or put something up to keep them from reaching the door. (Or lock it, but that will keep other pets from using it too.)

Sometimes people ask if they should get a smaller door at first and replace it as the puppy grows. Puppies grow very quickly and that would be an expensive solution. You wouldn’t just have to buy new doors – you’d have to increase the size of the hole and re-do the entire installation over and over again.

Instead, estimate how big the dog will be as an adult – or wait with buying the door until it is grown – and get the right size at once.