Easy to measure your pet for the right size door, and easy to install the insert into your existing patio door frame. No need for cutting or drilling.
81" door comes in Small, Medium, Large, and Large/Tall. 81" Door panels fit in most sliding glass doors and adjust to frame heights of 76.75" to 81". The 81" Large/Tall version is designed to fit in a patio door of normal height but has a taller flap to be used by tall DOGS ie: danes, wolfhounds etc.
The 96" Freedom Patio Pet Door Panels come in Medium, Large and Large/Tall versions. They are designed to fit into extra tall patio doors found in many houses today.
Freedom Patio Pet Doors feature:
Door sizing hints
It is very easy to size a door for your pet. However, if you have more than one pet and they are of radically different sizes, it can be harder. For instance if you have a tall doberman who can step over a 4" rise, but you also have a miniature dachshund that cannot get over the rise or cannot push the larger door open, then you will have a problem. It is possible they will each need their own door.