Door Cut Out:  

•  1) The size of the pet door will determine the size of the cutout to be made in the wall.
•  2) X-large pet door will fit between 2 studs with 16" centers.
•  3) Cut template as marked to the size of your pet door.
•  4) Center template at desired pet door height, adjust desired location from the left or right to assure installation is between two studs, tape in place, and trace the pet door pattern on interior wall.
•  5) After the pattern has been made, double check that the pattern is square and centered before proceeding.
•  6) Drill hole to receive saw blade. Use a saw and cut out the pattern in the interior wall.
•  7) Before moving outside, use a small square and reflect the cut out to the inside of the exterior wall.
•  8) Using a drill (drill holes for outside location) drill the top. bottom . left and right corners. Move outside and complete the cutout.

Mounting Pet Door: Initially install all frame parts using only center screw.  

•  1) Large & Medium doors will need to be placed directly next to one stud and a 2" x 4" frame will need to be installed in the remaining side, top and bottom of wall.
•  2) Attach Adjuster Plates on both sides of the interior frame and top and bottom of exterior frame using Phillips head screws provided. Do not tighten screws at this time.
•  3) Place pre-hung pet door in cut out from inside. Attach with Phillips head screws.
•  4) Move to other side of wall and install exterior frame, by sliding into opening and attaching with Phillips head screws provided.
•  5) Slide adjuster Plates against exterior frame so there are no gaps and tighten screws.