I have a very large dog. Do you have a door that will fit an Irish Wolfhound? The PlexiDor Extra Large is constructed for dogs up to 220 pounds and will accommodate very large breeds such as Irish Wolfhounds, Great Pyrenees, Newfoundlands, and Great Danes. Dog doors for pets this size face some unique challenges; a traditional flap door can’t stand up to the power produced by a 220 pound dog hitting it at full speed. Many dog owners who tried to use flap doors ended up with torn flaps, warped frames, and even pet door frames torn right out of the household door. The PlexiDor XL is constructed to take the beating of very large dogs running in and out all day long – and still opens so easily that a smaller pet can use the same door. The opening size is 16″ x 23 3/4″ and the door is usually mounted 12″-14″ above the floor. The top of the opening should be just above the dog’s back. The below size chart shows installation cut hole, opening for pet, and overall size, click on it to get the full size version.