
How to Replace a Dog Door Flap
Choose a dog door replacement flap that fits your frame, compare PetSafe and cut-to-fit PVC options, and learn how to install, clean, and adjust it.
Size charts, installs, replacement flaps, cost and training.

Choose a dog door replacement flap that fits your frame, compare PetSafe and cut-to-fit PVC options, and learn how to install, clean, and adjust it.

Use this dog door size chart to measure your pet, compare flap openings, choose mounting height, and check frame clearance before cutting into your door.

Dog door vs cat door: compare flap sizes, microchip entry and door thickness to choose an opening that fits both pets and suits their access needs.

Learn how to install a dog door in a wall, choose the right tunnel and flap size, check for hidden obstacles, and seal the opening against water and drafts.

Learn how to install a dog door, choose the right opening, mark and cut safely, seal the frame, and decide between door, wall, and sliding-glass options.

Learn how to train a dog to use a dog door with short practice sessions, rewards, and an open flap, then build confidence gradually at your dog's pace.