Ideal Pet Products Designer Series Plastic Pet Door with Telescoping Frame, Extra-Large, 10.5" x 15" Flap Size

An impact-resistant plastic frame that fits doors from 1-1/4" to 2 thick. | Our flexible vinyl flap comes with patented edges that stay in shape, no matter the use or weather, and has a floating bottom threshold ensures a perfect seal every time. | Pet Door Cutout Size is 11.75" x 17.5" | Includes a lock-out-slide to keep your pet in or out. | Recommended weight range of pet: 36 to 90 Lbs. Average install time: 20 minutes