If you’ve never owned a pet door before, you’re going to be very satisfied. It does what you think it should. But if you have ever owned a pet door, hold on to your socks. You’re not going to believe how much better this is that what you’ve had in the past. Please take a look at the Endura flap Pet Door Information that we’ve provided. We think you’ll begin to see what we’re so proud of.

New! Extreme performance Endura Flap™

The best, most highly engineered pet door flap ever made. Tired of replacing worn out, leaking flaps? You owe it to yourself to investigate the Endura Flap. Read the full story. It seals, it insulates and it will last forever! By the way, want to see what happens over time to the more traditional vinyl flaps? See our Leaky Flap page!

New! High aspect ratio design
Much easier to fit your pet. Improves security for medium to large sized pets. Easier to share with a smaller pet.

New! Provision to add magnets
to increase the already significant wind resistance.

Beefy aluminum extruded framing
with completely hidden hardware. No more flimsy frames with bolts showing all over.
New! Environmentally friendly flap material
Safe for the environment unlike vinyl (PVC) which is not.

Self-framing for all doors
1/2″ – 1 3/4 ” single flap version and 1 3/4″ to 2 1/4″ double flap version. (Adjusting the single flap to less than 1 3/8″ requires cutting the trim frame with a jig saw).

Sturdy locking cover
Locks pets in or out. Easy to use clip lock is better than the old spring-loaded pin locks. It’s equivalent to 1/16″ thick steel.

Superior customer protection
90 day return, 10 year warranty, 15 year warranty on the Endura Flap™ Assembly

Four sizes
From Small #6 for cats and small dogs to the Extra Large #12 for very big dogs.

100% Designed, engineered and manufactured in the USA.

Endura™ Size Chart

Flap Size & Stock No.
Flap Dimension
Rough Cut Out
Outside Frame Dimension
Flap Type
6"w x 11"h
6"w x 10"h
8 3/8"w x 15"h
9 7/16"w x 16"h
8"w x 15"h
8"w x 14"h
10 1/2"w x 19"h
11 1/2"w x 20"h
10"w x 19"h
10"w x 18"h
12 1/2"w x 23"h
13 9/16"w x 24"h
Extra Large
12"w x 23"h
12"w x 22"h
14 5/8"w x 27 1/8"h
15 5/8"w x 28"h