Endura Flap™ Thermo Panel 3e™ for Cats


  • Outdoor cats can come and go easily while maintaining your home's insulation
  • Simple installation requires no tools, perfect for renters or vacation homes
  • Fits any sliding glass door with adjustable top or custom size
  • Weatherproof flap contains adjustable magnets for easy training

Stock No: C01PPC06

Availability: In stock

Price From: $429
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Price From: $429
Endura Flap™ Thermo Panel 3e™ for Cats
thermo panel 3e cat door

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  • Outdoor cats can come and go easily while maintaining your home's insulation
  • Simple installation requires no tools, perfect for renters or vacation homes
  • Fits any sliding glass door with adjustable top or custom size
  • Weatherproof flap contains adjustable magnets for easy training
Flap SizeFlap DimensionStep
Stock No
Small #66" w x 11" h3"-5"11 1/4"C01PPC06
Height Options
  • P - 74 3/4" - 77 3/4"
  • Q - 77 1/4" - 80 1/4"
  • R - 93 1/4" - 96 1/4" (additional cost)

If your measured track height does not fall within one of the ranges above, we can make a custom height!  Choose the range that your track height falls into and when ordered you will be asked to give the exact height of your slider track inside very top to very bottom.  In each case you will have 3" of height adjustment with the height you specify approximately in the middle of that range.  The ranges are:

  • under 74 3/4"
  • 80 1/4" - 93 1/4"
  • over 96 1/4"

Wondering how to measure your track? Review our Track Measuring Guide

Caution If your measured track height is near the bottom of the adjustment range then you should review A Note of Caution.

Note Make sure to check out how to measure your pet for the perfect fit.  

Frosted Glass Option - If you prefer, your patio pet door panel may be special ordered with frosted (bathroom) glass. This option enables you to partially open your drapes for access to the pet door without losing privacy. Frosted glass is a final sale, no return option and requires an extra 3 to 4 weeks to ship because the glass gets custom ordered.

Thermo-Panel 3e™ Patio Cat Door

If you have a sliding glass door, you won't break a sweat installing this attractive sliding glass cat door -- the only one on the market that doesn't require a single tool.

While the panel is a breeze to install, it's also sturdy and insulated, keeping winter and summer air outisde, where it belongs.

Best of all, your kitty will have no problem darting in and out of the flexible Endura Flap without getting pinched, snagged or bonked on the head.



Keep that drill in a drawer and don't worry about cutting holes in your walls or doors. The Endura Thermo Panel is so easy to install, you won't even need to modify your slider's framing. It's just as easy to uninstall should you ever need to remove it.

Once you get the panel, you'll find that the adjustable step-over (the distance from the bottom of the door to the ground) conveniently allows you to customize the height of the door to tailor fit your Munchkin or Main Coon. If you've made a mistake measuring your slider when you ordered (it happens!), the panel comes with a forgiving "anti-whoops" extension.

Check the video tab on this page to see how easy installation is.

Energy Efficiency

Your four-legged friend will quickly appreciate how easy it is to dash in and out of the house with the Endura Flap Thermo Panel 3e™. But your pet's freedom to come and go whenever they please shouldn't cause you to suffer -- or pay higher energy bills.

Lesser cat doors will allow hot or cold air to seep in, making it uncomfortable to be near them in extreme weather. But this energy efficient door's superior insulation will not only keep out the elements, it also helps in canceling out noise from the outside.

The Flap

The Endura Flap is light and flexible, which your cat will appreciate when they need to get outside in a hurry.

This flap is also built to last. Many of today's pet door flaps are made of vinyl, which will split and eventually break with repeated use. Made of recyclable high performance polyolefin-based polyer, the Endura Flaps -- backed by a 15 year warranty -- use pivots that cut down on wear and breakage.

Custom Heights

Most sliding glass doors will accommodate the three panel sizes we offer. But if our standard panels do not match your door size, we can build a custom Thermo Panel 3e for you. We can also custom make a panel for a miniature sliding glass door, provided the window track width is at least one inch. These ‘mini” patio panels can be made down to 35”, perfect for making a doorway to and from their patio.

Locking Options

This panel will not mate with an existing sliding door lock so we include either a C-Clamp Lock for adjustment ranges up to 80 1/4", or a Foot Lock for panels 80 1/4" and above. You could also use the old "broomstick in the track" method or a Charley Bar.

Other Options

  • Frosted Glass
    • Pull back those drapes with our stylish frosted glass option! Designed like the windows you see in some restrooms, our frosted glass door panel will ensure your privacy. This option will require an extra 3-4 weeks to ship because the glass is custom ordered, and there will be no return option.

Customer Reviews

Set Direction
  • Easy installation, high quality review by Sophia
    5 5 Easy installation, high quality

    Installing it was super easy. The panel itself is really high quality and actually works well in windy conditions. Training my cat to use this took some time due to the magnet strength but my small dog was able to learn pretty easily.

    (Posted on 12/27/2017)

  • Easy to install and weather resistant review by Shirley
    5 5 Easy to install and weather resistant

    The no-tools installation was a huge plus. I can get the panel in and out in a matter of minutes, so if we do need to use the whole opening of the sliding door, it's not an issue at all. It took a bit of training to get my cat to go through since the magnets are strong than she's used to. But overall, great sturdy door that doesn't blow wide open like my previous door did whenever there was some wind.

    (Posted on 12/2/2017)

  • Not worth it! review by crb
    5 1 Not worth it!

    The door has condensation that builds up in the area between the glass and door flap. That area also leaks cold air inside. Therefore, it is not any better than a cheaper brand that I had before. I would not recommend.

    (Posted on 12/29/2015)

  • Excellent Product review by dave
    5 5 Excellent Product

    Excellent product. Easy to fit and install.

    (Posted on 6/15/2015)

  • This door is the answer to heat/cool loss review by G
    5 5 This door is the answer to heat/cool loss

    This is the answer to the typical problems of heating/cooling loss and drafts. It works just as described in the description.

    (Posted on 2/20/2015)

  • Excellent door review by Linda
    5 5 Excellent door

    We had to bring our outdoor kitty inside when he was injured after falling out of a tree. He is a small kitty, and we were afraid he may not be able to use this door to go out onto our fenced in porch. But after about one week, he was using the door without any help, and now can go in and out all night and is one happy cat. The door closes securely and keeps the cold air out. We are very happy with it.

    (Posted on 2/10/2015)

  • excellent review by Gramma Lyn
    5 5 excellent

    This pet door flap and double pained panel is well worth the extra bucks it costs! I am so glad I got it instead of the cheaper one a relative has. I installed it myself with no difficulty. Absolutely love it.

    (Posted on 2/9/2015)

  • part good; part bad review by Marty
    5 3 part good; part bad

    + Love the thermal glass & the endura flap
    + easy to install
    -- very poor sealing at both the fixed jamb and at the sliding door

    (Posted on 2/6/2015)

  • Great door great price review by K
    5 5 Great door great price

    This door is Amazing!!! So much more weather proof than our old door..no drafts or breezes. We installed in our Pella sliders by removing the hardware clips on the inside of the Pella frame then repositioning the foot locking mechanism at the bottom of the door. Safe secure and weather tight...ah!

    (Posted on 12/21/2014)

  • mixed review review by Marty
    5 3 mixed review

    Love the insulating glass and the endura flap (after the 'kids' got used to it. Installed easily. BUT
    Our Pella fiberglass patio door hardware is surface mounted at both the jamb-track and on the door edge preventing any tight seal. The foam weatherstrip is not enough to maintain full contact for the full height of the door. I will need to add some type of surface mounted strip that overlaps the joint.
    There is no way to lock the patio door with the pet-door in place so it must be taken out when we leave home. This is very easy to do but it means we can not simply remove the surface door hardware as the literature suggests as a solution. Sliding glass door is on the outside so the method of just putting in a brace doesn't work either.

    (Posted on 12/1/2014)

  • Nice Door review by gedub
    5 5 Nice Door

    This door is well make and works good on my slider

    (Posted on 9/4/2014)

  • Awesome--fits great---Molly loves it-- no leaks:) review by Mollydog
    5 5 Awesome--fits great---Molly loves it-- no leaks:)

    Awesome--fits great---Molly loves it-- no leaks:)

    (Posted on 7/10/2014)

  • Outstanding door review by HOBO
    5 5 Outstanding door

    This pet door is very sturdy. We replaced a competitor model which also had two doors, but it had a plastic surround which shattered during one of our cold snaps last winter. This door is much more structurally sound.

    (Posted on 6/15/2014)

  • Tough install but great product review by WendyP
    5 4 Tough install but great product

    Installation was a bit tough but it works great! Wished it had better included materials for weather stripping the backside of sliding door. Durable, keeps wind/heat out well.

    (Posted on 5/27/2014)

  • Great door review by SherriR
    5 5 Great door

    I love this door. It is so easy to fit into the door; you can pop it out if need be. We have had ours almost 7 years now and still love it. Wouldn't be without again.

    (Posted on 5/13/2014)

  • Kiska loves it. review by Pear2393
    5 4 Kiska loves it.

    It is so nice that Kiska can let herself in and out. It keeps out the cold, even at -20.

    (Posted on 2/19/2014)

  • Fantastic door review by Stella
    5 5 Fantastic door

    This door is so well made and was so easy to install. I liked that there was no screwing into the door framework required. The weather stripping tightened up the whole installation. I love the fact that it also looks like it belongs with the sliding glass doors. It has been a cold New England winter and it has kept me from having to open and close outside doors. It took a little training because the flap returns to the magnetic hold quickly. I started by holding the flap open and letting it roll softly over her back, on her return I always had lots of praise and well yes some really good treat. I also tried to keep her using only this door as I needed her to while I was at work. This door is a great purchase!

    (Posted on 2/6/2014)

  • Good product for cold weather climates review by KathyB
    5 4 Good product for cold weather climates

    We installed this door in November and have had a VERY cold winter with many days below zero. The thermo panel has kept the house pretty warm despite the cold. The only concern I have had is the bottom adjustable lip under the door itself tends to stick in the down position which does let in some cold air if I don't notice.

    (Posted on 2/2/2014)

  • overall satisfied review by Deb
    5 4 overall satisfied


    The only complaints I have are: the plastic door cover occasionally freezes shut in extremely cold temps., and, ice forms around lower part of door.

    Where I live (Wisconsin), it has been extremely cold this Winter, for longer spells than normal.

    (Posted on 1/31/2014)

  • Good product review by Dee
    5 4 Good product

    The quality and ease of installation are great. Good customer service. Bought for my cats. Like many others, I had to remove the magnets for them to go through the flap. The magnets are way to strong.

    (Posted on 1/16/2014)

  • Awesome review by Pet Door
    5 5 Awesome

    Love it!

    (Posted on 11/13/2013)

  • Draft help review by Bre
    5 4 Draft help

    With the sliding door not able to close all the way due to the panel, we've noticed a draft in the gap of the door. Any ideas on how to insulate the gap. We use the door so will need to be something that stays in place when the door opens and closes. Lmk if u need a pic to have a better idea of the area I'm talking about. Thanks

    ed note - The Thermo Panel IIIe and nearly all other patio pet doors include a 'draft stopper' designed to prevent this leak. Please call customer service for help with this.

    (Posted on 11/3/2013)

  • Great Door-Total Quality review by golfprofromcali
    5 5 Great Door-Total Quality

    This is exactly what we wanted. It's a great door, solid not flimsy and we wanted a door that could keep well insulated in cold and hot weather, which this is. Also an important thing for us, is that we have a french door slider which is white along with out windows and shutters, which are also a gloss white. This door goes with it perfectly as if we had it custom made. The staff both online and on the phone have been terrific. Don't hesitate--get it!

    (Posted on 10/18/2013)

  • 5 star review by jh
    5 5 5 star

    great door easy to use install and good insulation

    (Posted on 10/1/2013)

  • Very pleased; a couple of suggested customizations review by B Love
    5 5 Very pleased; a couple of suggested customizations

    I bought the product to replace a home-made plexiglass version I made for my sliding door. The Thermo Panel IIIe unit installed very easily, though I did add some weather stripping to adapt the unit to my particular door frame. Door frames come in so many variations that no one product can fit them all straight out of the box. Expect to do a little bit of tinkering.

    This is a high quality, well made unit that is very well thought out and adapts easily to different door heights. Try to make something like this yourself and you'll see how well the different problems have been addressed.

    The unit is for three cats (15 - 30 lb Maine Coon mix rescue cats). My home-made door hinged at the side and my cats don't like bumping the top-hinged door with their noses to open it. Kelsey Youmans in Customer Service at Petdoors .com sent me instructions how to reduce the magnetic force holding the door shut and that seems to have solved the problem without affecting the door's weather sealing properties (I live in hot, humid Florida). I trimmed the side magnets to about two inches each and placed them at the top of each side. Works very well. Thanks Kelsey.

    What counts is that my wife is very happy with the door - If mama happy everbody happy.

    (Posted on 9/23/2013)

  • 90% Great review by R&C
    5 4 90% Great

    Great, solid, weatherproof door. The only thing that does not work well is the Bug Flap. Hard to fit at the top and bottom due to the sliding door tracks.

    Not a very good seal at all.

    ed note - Please call our customer service regarding the seal. No reason at all why it shouldn't be perfect.

    (Posted on 9/12/2013)

  • Great now, but installation was a bear review by Midwest Gal
    5 4 Great now, but installation was a bear

    Installation took 3 people and sometimes 4 to get in there. Instructions were not as good as I had hoped for.

    (Posted on 9/10/2013)

  • Flap is VERY noisy review by Disappointed
    5 3 Flap is VERY noisy

    Although this is a high quality pet door, the actual flap falls short is design. The flap is extremely loud as it is opened and moves back and forth. It can be heard anywhere in my two story house. My neighbors can hear it as we'll. I have gone so far as ordering a replacement flap and that did not help at all. A customer service rep told me that was the normal noise level. Consider this before purchasing.

    (Posted on 8/29/2013)

  • Great buy for our "best friend" and for us! review by Maggie and Mike
    5 5 Great buy for our "best friend" and for us!

    We live at 4000 feet in the Sierra Nevadas, and have both snowy winter episodes and 75- to 90-degree summer days.

    Buying this pet door was one of the smartest things we've done since we' rescued Mellow two-and-a-half years ago. There's no more popping up and down to open the deck door . . . when he wants to go outside, he simply does so, at least a dozen times a day. What a boon for our arthritic joints!

    We also want to compliment Patio Pacific on the door's fine quality and easy installation. The whole family looks forward to enjoying its convenience for many years to come!

    (Posted on 8/25/2013)

  • Pet door review by Reg
    5 5 Pet door

    best place to shop

    (Posted on 5/19/2013)

  • My SECOND Endura-flat door review by Barbie in Hamilton, Canada
    5 5 My SECOND Endura-flat door

    As wonderful as my first experience was with this company about 5 or 6 years ago when I had a custom door made, as great was my second experience ordering my second door!

    The door arrived via Fed Ex and I eagerly just initially put it in place! Perfect fit. Perhaps during packing of the door the side bellows of the ENDURAFLAP became twisted and there was about 1/4 inch variance on one side of the flab allowing air in. I called and Alan immediately sent me an e-mail and gave me the option of either them picking it up and replacing the door, or I could try a simple fix first. I tried the the fix, which was placing the flap end of the door on my lap, and using my hair drier on MEDIUM I worked the bellows, (while the flap remained in the flap frame,) with my index finger of my left hand while holding the hair drier in my right hand. It only told about 30-45 seconds before the small problem of the flap on meeting the farm perfectly was fixed. I'm 60 years old, need a knee replacement, and I did this under 5 minutes! Fixing this was far easier than re-packing the box for shipment back! This is an amazing company and it starts at the top down! I wouldn't hesitate one minute from buying a 3rd door from them, or telling you NOT TO WORRY about any problems you might think you have, because Alan and his company will work it out to your satisfaction! Thank you Alan!

    (Posted on 3/27/2013)

  • Good Door review by Bouvier
    5 5 Good Door

    Delivered on-time, well-packed and as-advertised. The little packet of treats was a nice touch.

    Easy Installation: Yes. Good documentation

    Safe & Secure: probably as good as a patio door insert can be. The locking cover is sturdy and snaps in positively.

    Superior Insulation: Well, there is some good double-pane low-emissivity glass. The conductive losses through the all-metal construction are noticeable however and I wonder if a thermal break is feasible at this price point. Foam tape and a rubber sweeper seal are helpfully provided with the door to complete the installation.

    Design is all about tradeoffs and with adjustable step-over comes air infiltration in this case. There are miniscule gaps between the pieces used to support adjustable step-over, and air gets through them. These are easily sealed with clear packing tape.

    The flap closes positively, seals well, and does a good job of staying closed in howling winds. My cat can't push it open, which is annoying to him but is fine with me.

    Built to Last: Seems to be well constructed and finished with good hardware, and the flap looks robust.

    Fits any door: It dropped right in to mine and the adjustable portion at the top was effective. My door frame wasn't quite square so I needed to use some 3/4 inch backer rod to complete the seal around the insert.

    All in all, good door.

    (Posted on 3/11/2013)

  • Great doors!!! Endura flap is awsome!! review by Gnan
    5 5 Great doors!!! Endura flap is awsome!!

    This was my second door from here. Both have been great products. Well built and keeps the cold out!! Awsome customer service. I will continue to make my purchases here. Thanku Patio Pacific!!!

    (Posted on 2/24/2013)

  • endura flap review by kybellboy
    5 5 endura flap

    This is my second Endura Flap pet door. The reason for the second is obvious because I liked the first. You can buy cheaper pet doors but I guarantee you they won't come with this ease of installation and quality. Thanks for being there and making such a fine product.


    (Posted on 2/12/2013)

  • Great door review by Lori
    5 5 Great door

    This door is very versatile and a great option instead of a wall door. I would recommend it.

    (Posted on 2/8/2013)

  • Excellent glass door panel and Endura flap review by bohunk in Nebraska
    5 5 Excellent glass door panel and Endura flap

    I am very pleased with this product and could not ask for better customer service since I sort of screw up with the weather strip.I forgot that it is 3/8 inch thick. Reading all the instructions for once and not putting the weather strip on in case of return I fit the panel in the frame and found that my door would not close over the top spring loaded two pieces. I called customer service and tried to explain my problem to Traci. She thought I might have got two caps for another size door and would send me what should be the right ones. In the mean time I got nervous as temps were going down to 5-10 degrees, so I cut the caps down remounted and my door closed over the panel. took panel out put on weather strip closed door to panel and had a 1/4 inch gap due to weather strip. when the ship panels arrived they were the same ones and now fit perfect. As I could not return the ones I cut I talk to custome service to bill me for the shipped ones. They E-mailed and said after much deliberation and laughter (I'm sure) they would forgive the cost of them.
    I highly recommend PATIO PACIFIC products and their prompt courteous service to anyone who is in the market for any type of pet door.

    (Posted on 1/11/2013)

  • great product and customer service! review by jerry
    5 5 great product and customer service!

    I have had this panel for about two years and find that it meets my needs. Living in the midwest creates a variety of temperature changes which this product can handle. I had to change the threshold recently and the service was outstanding. The representative I talked with was very knowledgeable. The entire process was handled professionally and quickly. I could not ask for anything better.

    (Posted on 10/15/2012)

  • Superb Features review by Todd
    5 5 Superb Features

    I have had this pet door for around 2 years. I live in the Pacific Northwest in the Columbia River Gorge - high winds, rain, sleet, snow, blazing hot summers. This door is superb - seals tight. The pet door flap has a magnetized bottom that, at the bottom of its swing, "attracts" the bottom frame piece that floats up and down about a 1/2 in. As a Mechanical Engineer, I am impressed with its simple yet functional and innovative design. It is very adjustable. The quality is top notch. The pet door panel as a unit probably seals better than the sliding glass door itself.

    I highly recommend this door. I also purchased a security bar kit and rubber sealing kit to help block bugs around the sliding screen door. ( I forget the nomenclature used by the website for these additional options.) It all works very well with good instructions.

    My only complaint - which is extremely minor in nature - is that it did not come with enough self-adhesive sealing strip. No worries. A quick trip to the local hardware store, at a minor expense, purchased another roll of wide adhesive sealing strip, most of which is still in my garage.

    (Posted on 1/4/2012)

Weight 1.0000
Your Maximum Pet Size Cats
Climate Suitability Severe-4 Season
Sealing Value Very High, High, Average, Low
Wind Resistance Very High, High
Flap Material Engage Polyolefin
Manufacturer's Restocking Fee 0



Installation Instructions for the Endura Flap™ Thermo Panel 3e™ for Cats



All Panels

1x Foam Weather Strip • 1x Center Post Weather Seal Draft Stopper

1 Piece Pet Door

1x Panel Pet Door • 1x Sliding Door Clamp

2 Piece Pet Door

1x Top Glass Panel Section • 1x Bottom Flap Section

4x Hex screws • 1x Hex wrench • 1x Threshold mount deadbolt w/screws



The aluminum, vertical panel has a patented ‘Adjustable Step-Over’ feature which permits adjusting the height of the flap to the most comfortable fit for your pet. Generally, the top of the flap should be positioned to be at least 1” (2,5 cm) above the top of the pet’s shoulder (the ‘withers’). If the factory setting is not suitable, please adjust it before proceeding. If the current setting is suitable, or you have the vinyl panel, proceed to step 3.



1A. Two-piece panels: Simply slide the pieces up and out from the bottom half of your panel to rearrange. Loosen a bottom screw if the pieces are too snug to move.

One-piece panels: Lay the entire panel on a flat surface (like the floor). Using a #2 Phillips head screwdriver, remove the bottom side-screws, and loosen the next upper screws one turn. Screws were tightly installed to hold the panel together during shipping; a drill is recommended*.

*If you do not have a Phillips head drill bit skinny enough to fit, let us know and we’ll send you one for free.

2B. One-piece panels: Once the bottom screws have been removed and the next upper side-screws loosened, the Pet Door Assembly and spacers can be removed by sliding the sections down and out of the panel. 

2C. Replace the spacers and the Pet Door Assembly by sliding them back in a different order to achieve the desired height. You can move the spacer below or above the flap to raise or lower the flap height.

The order of the pieces is important! The piece on the bottom needs to always be at the bottom, as that is where the screws attach. 

When finished, replace the bottom side-screws and tighten the next upper-side screws for one piece panels and skip to step 4. For two-piece panels, you can now assemble the patio panel!

Note on flap height and pet size:

A lower step-over height is easier for pets to navigate. However, if the top of the flap is low enough that the pet needs to crouch to get through their pet door, they can injure themselves and possibly cause the pet door to malfunction. If your pet door does not sit at a comfortable height for your pet, you may need a larger size flap. 


(if you have a single piece panel, please proceed to step 4)


3A. Align the aluminum connectors extending from the bottom flap panel section with the top glass panel section. Press the aluminum connectors into the holes at the bottom of the top glass panel section. Ensure locking cover & thumb screws are on the same side!

3B. Gently tap the bottom surface of the panel against the ground to completely insert the connectors. Protect hard surfaces to prevent scratching. The components of the panel are designed to slide together very tightly.

3C. Fasten the two panels together using the four stainless steel hex head screws found in the panel packaging. Use the hex wrench to tighten screws so the two halves of the door are pulled together. 

Note: Screw holes may look misaligned; this is intentional to ensure a tight fit. The panels will squeeze together as the screws are tightened.

4. Loosen the thumb screws at the top of the pet panel. This allows the spring mechanism to move freely up and down.

5. To insert the panel pet door into the top track, push up against the spring mechanism and swing the bottom of the panel up and over the threshold. Seat the panel on top of the small guide rail in the track. If you can’t quite get it in the track, try swinging in from the outside as the outside track wall may be shorter.

You want to put the pet door in your track before applying any weather-stripping to ensure it fits! If it fits well, move on to the next step. See our tips at the end of these steps if you have trouble!

6. Once you’re sure the panel fits, remove the panel from the frame and lay it on its side on the ground. Apply the foam weather-stripping by peeling back the paper and exposing the adhesive. Unroll it along the edge of the panel, pressing to ensure it adheres. Install on both sides, trim to fit with scissors. 

7. The center post weather seal strip (draft stopper) should be installed on the inside of the home. It can install on either the back edge of the sliding door panel or the leading edge of the stationary panel. This strip prevents air leaking between the sliding glass door and the stationary panel. Trim with scissors as needed. Clean the edge of your patio door with rubbing alcohol before installing to assure a good seal.



Since you cannot lock your sliding glass door to your panel pet door, we have provided you with an alternative locking method to secure your home:

Doors over 80 1⁄4” (203,8 cm) Tall

Installing the threshold mount deadbolt lock: For doors manufactured with the glass slider on the inside track, the lock can usually be installed on the back of the slider using the mounting screws provided. For doors manufactured with the slider on the outside, the lock is installed on the leading edge of the stationary panel.

Drill a 3⁄16” (4,8 mm) hole into the frame opposite the steel deadbolt lock. This hole MUST be 3⁄4” (1,9 cm) away

from the inside edge of the door’s frame to avoid drilling into the glass. Drilling into the glass will cause the glass to shatter.

Doors under 80 1⁄4” (203,8 cm) tall

Installing the sliding door clamp: This clamp has a screw which tightens by hand to prevent the sliding door from moving beyond the clamp’s placement. For doors manufactured with the glass slider on the inside track, the lock can usually be installed on the door’s raised track.


For help with installation, replacement parts or other questions visit EnduraFlap.com or call 805-781-7700 Monday-Friday 7am-4:30pm PT



Click below to expand:

No, the thumb screws are on the inside of the panel, so once installed, the Endura Flap Panel can't be lifted out.

Yes there is a slide in closing cover that you insert on the interior side of the panel.

Endura Flap sliding glass doors for cats do not require tools, however the lock for the doors in the heights over 80 1/4" would require a drill to install the foot lock.

74 3/4" is the smallest the off the shelf door would compress down to.

Anything from 80 1/4" - 93 1/4", and over 96 1/4" - 100"

The minimum still using the glass would be 35", and the maximum would be 100".

Then you can contact us in customer service and we can see what we can do to make you a custom door outside our normal ranges. In some cases extra spacers can be used to extend the panel, or they can be used in place of the glass to get under that 35" minimum.

The top had two 3/4" flanges that you can trim off using a metal cutting blade.

You can slide one of our height extensions to get you an extra 3/4". If you need more than that you can use a piece of wood cut to size and slide that in the top channel.

This will add to the insulation, as it helps to seal up the gap created by the pet door offsetting the slider so it will no longer line up with the stationary frame. These are included in all the Thermo Panel Cat Doors.

This door is manual, but we do have some that are available with electronic options. The Dual Scan will contol who comes in and out, the Cat Door will do a good job controlling strays coming in, and the Pet Door has a more generous flap size.

It is one of the best and the go to for extreme weather and high wind prone areas.

The only difference is the glass. In the Thermo Panel it is dual pane lo-e and the Quick Panel is single pane.

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