No
In the event you are just asking a question about dog doors and not an installation request, they can can be installed in either a wall or door but check the specific dog door for the thickness it can cover. Some are only made for a standard door thickness others can line a 5 or 6 inch thick wall.
Confirming Ryan & Eric's answers, no installs on dog door. Check the local advertisements for such services, i.e. Handyman or Carpenter.
Nope
Fleet Farm does not offer Installation.
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