The opening should be mounted 2 inches above your dog’s shoulders. Larger dogs = higher mounts. For older dogs, mount lower with a larger size.
How high should I mount the PlexiDor?
The Best Pet Door
Most pets hate flap doors! PlexiDor Pet Doors are long-lasting and beloved alternatives.They have hinges, like a door, so there's no loud flap slap or flexible materials. They lock easily, and most models come with a steel security plate for additional security when you are away.
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