3. Using a stud finder, locate the wall studs and mark the edge. For ease of installation it is simpler
to work from the left side stud. This will make notching for the door lock easier as explained
later.
4. Measure the height of your pet at the shoulders, add 5” to this measurement and mark this
height on the wall.
5. Align the top of the template with the height marking and dotted vertical line with the stud
location marking. Tape the upper corner of your template in this location.
6. Using a level verify that your template is level, both horizontally and vertically. Tape the
template to the wall so that it will not move. Verify that the opening cutout shown on the
template is in the right location and correct height for your pet. Also, verify that your template is
level and plumb before cutting into the wall.
*X-Large frames will require cutting a wall stud in most applications. Have a professional
verify that you are not cutting a load bearing wall stud. Major damage will result if a load
bearing wall support is cut.
7. It is advisable to lay a drop cloth in front of the area you will be cutting to protect your flooring
and minimize clean up once you are finished.
8. Using a drill, with a 3/8” drill bit, drill the 4 corners as marked on the template. This will give you
a place to start when cutting your opening. These 4 holes can be drilled through the outer wall
at the same time if your bit is long enough.
9. Drill the lock cutout location with the same 3/8” drill bit, only going through the interior wall.
10. Drill the 4 Security panel mount locations using the same 3/8” drill bit. These holes only need to
be ¾” deep.
11. Take your jig saw, or appropriate saw for your materials, and cut the opening in your interior
wall following the cut mark on the template.
12. Remove the section that you just cut.
13. Remove any insulation in the opening that you just cut. *Safety glasses, gloves, long sleeve shirt,
and a dust mask are recommended when working with insulation.
14. Using a small square and the interior opening you just cut, transfer and mark the four corners on
the outside wall.
15. After you have verified that your markings are level and square, drill the four corners with the
3/8” drill bit.
16. From the outside of the house, use the template from your interior cut, to connect the 4 corner
holes that you just drilled. Verify that everything is square and plumb before taping the
template to the wall.
17. Using the appropriate saw and blade for you siding, cut the exterior wall opening.
18. Test fit both the interior and exterior frame into your opening to verify that everything fits well
and there is no binding. If necessary trim small amounts to ensure a proper fit.
19. It is recommended that you frame in the opening using the same size framing lumber as your
house was built with, making sure to notch the right hand stud for the lock.
20. Install the exterior and interior frame, but do not install the screws at this point.
*Due to the various styles and types of siding there are multiple ways to mount and/or trim
the exterior frame. Consult a professional as needed to ensure that your new pet door is
secure and weather tight.
