Ownpets Weatherproof Dog Door, Double-Flaps Aluminum Pet Door,Larger Size Outline 20.2”x14.2”/Inner11.6” x 16.8”,With Magnetic Flap And Safety Guard,Strong & Durable Pet Entry Door for Dogs Up to 110lbsLarger Dog Door: Ownpets dog door size of inner frame is 11. 6 * 16. 8 inches and the outline border measures 14. 2 * 20. 2 inches. The overall thickness of pet door is 2. 6 inches. It weighs up to 110lb, which means that it is suitable for dogs from medium size to large size. Double Layer Flaps: The pet door can be installed not only on the door but also on the wall. The double layer flap makes it covered by door curtains on both sides. Weatherproof