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Endura Flap Double Flap Pet Door For Doors (E2 Design) - Installation Instructions

Installation Instructions

Click to view the Single Flap Door Mount Instructions.

Installation icon Printable Version
Installation icon Difficulty High
Installation icon Steps 11
Installation icon Time Required 2-3 hours
Installation icon Sections 06
Installation icon Flags 03


  • 1 Installation Template
  • Short Screws (2-1/4")
  • Long Screws (2-3/4")
  • 4 Screw Covers
  • 1 Installation Magnet
  • 1 Inside Flap Frame with U Tunnel
  • 1 Outside Flap Frame
  • 1 Sill Plate
  • 1 Tube of Silicone
  • 1 Locking Cover


  • Pencil
  • Drill with 3/8" (9,5 mm) drill bit
  • Level
  • Measuring Tape
  • Jigsaw or Reciprocating Saw

Please read instructions & notes thoroughly before installation.

Double Flap Door Mount

Step 1 Prep Your Door

  • If you have not yet measured your pet, watch this video to ensure the pet door will work.
  • If possible, remove the door from its hinges using a screwdriver and hammer to tap out the hinge pins. Lay the door flap for installation. Tape the provided template to the door. The top edge of the cut-out line should be at least 3” (7,6 cm) above the pet's shoulders.
  • Be careful not to cut too close to the bottom of the door as you may reduce the door's strength. Level the top edge of the cut-out line.

Step 2 Drill the Holes

  • Once you are certain the pet door will work with your door, make sure the template is level, and mark the outline with a pencil. Remove the template and drill holes through the corners just inside of the lines using a ⅜” (9,5 mm) drill bit.
  • Make sure your drill is kept level and drills all the way through the door.

Step 3 Saw An Opening

  • Using a jigsaw, cut along the marked lines, making sure to cut straight.
  • We recommend applying masking tape along the outside of the lines to protect your door from scratch marks as you cut with the jigsaw.

Step 4 Place Sill Plate

  • Rest sill plate at the bottom of the cutout with the weather stripping facing up and the outer leg on the outside of the door.

Step 5 Caulk U Shape Tunnel

  • Apply caulking to seal the tunnel to the inside frame on the 3 sides of the U shaped metal tunnel.

Step 6 Check Weatherstripping

  • Ensure the weatherstripping is firmly pressed in the groove on both frames. Weatherstripping ends on the side for the inside frame, while the outside frame has an open area at the bottom to allow water to flow outside down the sill plate. Weatherstripping is indicated in red.

Step 7 Position the Frames

  • Place the inside frame with the tunnel on the inside of the door just resting on top of the sill plate weatherstripping. Take the exterior frame and place it on the outside of the door fitting inside the tunnel.

Step 8 Position Screws

  • Select appropriate screws and insert them into the pet door from the inside.
  • Do not fully tighten screws until all four screws are inserted and the pet door is leveled.
  • Use the included installation magnet to help align the screws.

Door Thickness Screw Length
1-⅜” (3.5 cm) Short Screws (1-¾”)
1-¾” (4.4 cm) Long Screws (2-¼”)

Step 9 Screw Door Into Place

  • Once the pet door is leveled, tighten the screws so that the weatherstripping compresses.
  • Do not overtighten.

Step 10 Attach Screw Covers

  • Push the four screw covers in by hand to cover the screws.

Step11 Seal With Silicone

  • Apply silicone where the two frames meet. Also apply silicone where the outside frame meets the door.