Large dog door (NE Heights)

I included pick of the new door for size reference since they fit in the same hole in door. Free offer is the one ik box, not the door picture.

I'm busy and tired, if I only get "what exact size" questions I can find some measuring tape... it's big. Maybe even an extra large, doberman, golden, and husky used it fine, probably not a saint bernard. We just replaced with a sensor locking one to keep cats in. Plastic flap, metal cover to close off when needed, screws are even there. Not weather proof, a good gust can blown it open, has magnets to keep close on a non ABQ Windy Spiring Day.