For extra-tall sliding doors, this dog door adjusts across a 91 to 96 inch height range instead of the shorter range used on standard sizes, so it fits taller patio frames without extra shimming. The 13 5/8 x 23 5/8 inch flap gives large dogs and even large cats plenty of room to pass through, and an upgraded metal plate and hinge structure are built to resist breaking in cold temperatures. The aluminum frame and tempered glass panel hold up to daily weather exposure while keeping a clean, finished look. A locking panel slides into place to restrict your pet's access, ideal for nighttime or whenever you leave the house. Installation slides directly into the existing patio door track with no tools required, making it a solid non-permanent option for renters. Precision-fit installation fixtures keep the panels aligned so they don't wobble or jam after repeated use. Including all accessories, the complete unit weighs 26.24 pounds.