SUITS MOST SLIDING DOORS: Pet Door Frame Measures: (14.8 W x 77.2 83.5 H) | Compatible with internal and external door locking hardware. SUITS MOST SLIDING DOORS: Pet Door Frame Measures: 14.8 W x 77.2 83.5 H | Compatible with internal and external door locking hardware. RENTAL SAFE & SECURE INSTALL: A new spring jack mechanism allows this pet door to be securely pressure mounted in place without screwing it in or permanently install the pet door into your door frame with the included permanent mounting parts for an extra level of security.