Installing Endura Flap Doors

Endura Flap for Doors
Installation Instructions

Tools & Materials Required

Installation Instructions

1. Tape the provided template to the door. The top edge of the cut-out line should be 1-1/4 inch (or more) above the dog’s withers (shoulders) for the single flap door mount, and 2 inches for the double flap wall mount. Be careful not to unduly reduce the strength of the door by cutting too close to the bottom of the door. Level the top edge of the cut-out line as shown in Figure 1. 
    

2. Mark the hole centers for the four holes and remove the template.
    

3. Drill the four 3/8 inch holes as shown in Figure 2.
    

4. Draw the cut-out lines using a straight edge as shown on the template.
    

5. Cut along the line as shown in Figure 3.
    

6. Install the weather-stripping into the groove on both frames with the start/end gap at the bottom.
    

7. If a single flap door mount, place the pet door trim frame on the outside of the door and the flap frame on the inside. If a double flap door mount, place the flap frame with the tunnel attached on the inside and the other flap frame outside.
    

8. Select the longer set of screws for 1-3/4 inch doors and the shorter set for 1-3/8 inch doors. Insert these into the pet door from the inside. For doors with a thickness of less than 1-3/8 inch, see special instructions.
    

9. Install the barrel nuts from the outside. Installing the barrel nuts can be difficult. To assist in holding on to the barrel nuts, use the plastic screw. Force the plastic screw into the barrel nut until you hear it click as shown assembled in Figure 4. It can then be mated to the frame screw. Start all four screws and barrel nuts as shown in Figure 5, but do not tighten.
    

10. Before tightening down the screws, check that the pet door is level and adjust as needed.
     

11. Tighten the screws until the weather-stripping compresses and the pet door touches the door. Do not over tighten.
     

12. Hammer the hole covers into the frame using the wooden end of a hammer (or similar non metal tool).
     

13. Apply silicone along the inside of the tunnel where it mates with the flap frames to seal your pet door from the elements. Failure to seal your pet door can lead to severe water damage.

Special Instructions for doors less than 1 3/8" thick.