How To Install the PetSafe® 4-Way Locking Big Cat Door in a Glass Door or Window
Important Information
- We recommend contacting a glazier or glass expert before attempting to cut any glass surface to assist with installing your pet door and avoid any damage to your glass.
- It is not possible to cut holes in tempered or double-pane glass, except at the time of manufacture. Consult a professional glazier or glass manufacturer to install the pet door in a glass door or window.
When you first open the box, do not throw away any included cardboard/paper pieces, these are used during install.
If installing the pet door in a sliding glass door or window, the pet door should be installed on the inner panel with the interior frame on the inside of the house, so the 4-way lock does not prevent your door or window from working properly.
Determine Cat Door Placement
Measure your cat’s height from the floor to their shoulder. Then mark that measurement on the glass door or window with a permanent marker.
Use a level to draw a horizontal line through the height marking to extend it.
Decide where on your door to install the pet door.
- The cat door does not have to be installed in the center of your glass door or window. You may choose to adjust it to the left or right.
- If you are installing it in a paned window, align it within a pane for ease of installation.
Use a level to draw a vertical line for the cat door to be centered on. If you are placing the pet door centered on your glass door or window, measure to find the center and draw a vertical line.
Cut out the template along the Glass Door line and tape it on your door, aligning the height and center lines you marked to the ones on the template. Ensure this is the location you want to install the cat door and make any necessary adjustments.
Cut the Opening
Cutting glass is a skilled job and should be done by a professional glazier or glass manufacturer. Your glazier will need to cut a circular hole with a diameter of 10 3⁄8˝ (263 mm) with the center of the circle 1 13⁄16˝ (46 mm) below the shoulder height mark. The template can be used for reference.
Install the Frame
Determine the length of screws needed for use with your door thickness. If the screws are too long, the finishing plugs will not fit.
Place the exterior frame into cut-out from the outside of the glass door or window. Then, place the interior frame (with flap) into the cut-out, aligning it with exterior frame.
Insert the binder posts into screw holes in exterior frame. Hold the binder post in place and insert appropriate length screw into screw holes in interior frame.
Using a Philips screwdriver, evenly tighten the screws moving from one screw to the next in a Criss-Cross pattern, until all screws are hand-tight. It may be necessary to adjust screws to make sure the frames cover the cut-out and the flap swings freely.
Insert finishing plugs into screw holes in interior and exterior frames.
Caulk around the exterior frame with clear weatherproof caulk for weather resistance.
Contact Customer Care
If you need further assistance, please contact our customer care team.