Several brands of extra large dog doors for sliding glass doors for super large dogs over 80 lbs. (general guideline) and very tall dogs.
Extra large patio pet door panels are for pets ranging in shoulder widths from 10 inches to 15 inches. Some manufacturers go beyond extra large to sizes such as super large and giant for the largest of breeds. Most importantly check your patio doors to ensure that once the extra large dog door for sliding glass doors is installed that there is enough clearance for people to come and go.
Please measure your pet before ordering. Pet weight is provided only as a guideline and is not the best criteria to use when measuring your pet for a pet door. Please see How To Measure Your Pet For a Dog Door to assist you in determining the best size of door and what product is most suited for your pet.
The most common reason for pet door returns is due to incorrect sizing. The width of the pet flap must be greater than the width of your pet across the shoulders. Please call customer service if you have any additional questions on how to properly measure your pet.