House training
Can an adult dog be trained to use a doggy door?
Last updated 23 September 2026 · How we write and check this
Short answer
Yes, most adult dogs learn a doggy door within 1 to 2 weeks using treats to lure them through the flap a few times a day, starting with the flap propped fully open before letting it hang free. Dogs who are nervous of the flap's movement or sound often need a slower introduction, sometimes removing the flap entirely for the first several days.
Starting with the flap open
Prop the flap up with tape or a clip for the first 2 to 3 days so the dog can walk through the opening without anything touching them, tossing treats through from one side to build a positive association with the doorway itself before the flap becomes part of the equation.
Introducing the moving flap gradually
Once the dog moves through confidently with the flap propped open, lower it partway for a few days, then let it hang fully, continuing to reward each successful pass. A dog who startles at the flap's sound or swing usually needs this staged approach rather than being expected to push through a swinging flap on the first attempt.
Key takeaways
- Propping the flap fully open for the first few days removes the main source of hesitation.
- Treats tossed through the opening build a positive association before the flap starts moving.
- A nervous dog usually needs the flap lowered gradually rather than hanging free from day one.