Ideal Fast Fit Height Extension Panel

SKU# 01RI97

  • Doggie door extension piece for added height to your Ideal Fast Fit Panel
  • Allows the Ideal panel to fit any track height
  • Fits Ideal Fast Fit Patio Panels only
  • Available in bronze, brushed aluminum, and white
  • Custom and non-returnable

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Stock No: 01RI97

Availability: In stock


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Ideal Fast Fit Height Extension Panel
The Height Extension for Ideal Fast Fit models that sits on top of your panel

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  • Doggie door extension piece for added height to your Ideal Fast Fit Panel
  • Allows the Ideal panel to fit any track height
  • Fits Ideal Fast Fit Patio Panels only
  • Available in bronze, brushed aluminum, and white
  • Custom and non-returnable

If your sliding glass door track height is between 80 5⁄16” ‒ 93 ¾” or 96” ‒ 110 ½”, the Ideal Fast Fit panels will not be tall enough to fit into your door frame. Fortunately, Ideal offers a custom dog door extension to accommodate customers who have odd track heights. If you have not already purchased the panel, you can order the custom pet door extension and panel together here.


Follow the instructions below to accurately place your custom pet door extender order:

Step 1: Select the framing color you wish:

  • Bronze
  • Brushed Aluminum
  • White

Step 2: Determine what your height extension needs to be in inches. Calculate it by subtracting the fully extended panel height from the height of your sliding glass door track. Then add 2 ⅛” in order to get the correct height for the extension. Below is an example calculation.

  • Track height = 88”, Panel = 80 5⁄16”
  • 88” - 80 5⁄16” = 7 11⁄16” 
  • 7 11⁄16” + 2 ⅛” = 9 13⁄16”

Type your answer (in this case, 9 13⁄16”) into the corresponding box under the dropdown menu.
Please Note: The maximum height for the extension is 14”. It can be built up to 16”, but the manufacturer suggests that you then semi-permanently install it for stability.

Step 3: Measure the full with of the panel in inches from left to right. When you’ve determined the width, type your answer into the corresponding box under the dropdown menu.


Please Note: The Ideal Fast Fit pet door height extension will not fit any other patio pet door panel, so be sure to double check that your door is an Ideal with the aluminum framing. Also, because it's a custom built order, it is not returnable after purchase.

Customer Reviews

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  • The perfect addition to my cat door panel! review by Jim
    5 5 The perfect addition to my cat door panel!

    This makes my cat door work perfectly in my rental with very tall sliding doors.

    (Posted on 6/26/2018)

  • LIFESAVER!! review by Henry L
    5 5 LIFESAVER!!

    I accidentally ordered a height adjustment size shorter than I should have...luckily didn't have to shell out another couple hundred bucks because Customer Service directed me to this height extension! (They also had me double check that I had a panel from the Ideal Fast Fit series because apparently this won't work with any other models, so just an FYI to y'all out there.)

    (Posted on 1/12/2018)

  • Saved Money review by Leon
    5 5 Saved Money

    I had this Fast Fit panel at my old house. My new house had a taller opening. i was able to buy this height extension to fill the gap between the Fast Fit and the top of my door. Make sure you follow the instructions for the calculations because the Height Extension is custom made and not returnable. I ended up calling their Customer Service department and they were very helpful.

    (Posted on 12/28/2017)

  • Great product review by Jack
    5 5 Great product

    This thing is awesome! We moved and our sliding glass door was much taller than the one in our old house. This thing saved us a lot of money because we were able to use the same dog door!

    (Posted on 12/8/2017)

  • Perfect Fit review by Lauren
    5 5 Perfect Fit

    The extension was a perfect fit for our strange sized sliding door. I thought the custom dimensions would make for longer processing and shipping times but the extension panel was made and shipped within a couple of days. Perfect!

    (Posted on 6/10/2014)

  • Perfect Fit review by Tim
    5 5 Perfect Fit

    The cat door I have for Sliding Glass Doors was not high enough so I bought an extension and it worked perfectly. I adjusted mine halfway down and measured the difference so that I had the best chance of a good fit.

    (Posted on 6/12/2013)

Weight 2.0000
Manufacturer Ideal Pet Products

Click below to expand:

The doggie door extension would work for you only if you have an Ideal sliding glass door height between 75" - 77 1/2", 80 5/16"-93 3/4", or 96"-110 1/2"

Calculate your ideal extension by subtracting your current panel height from the maximum height of your sliding door, then add 2-1/8" in order to get the correct height for the door extender. This calculation is the same for the 96 inch door as well.

The maximum height for the extension is 14". It can be built up to 16” but the manufacturer suggests that you then semi-permanently install it for stability for any extension greater than 14".

Certainly. If you measure your track height at 88" exactly, you'd subtract 80 5/16" from 88" equals 7 11/16" and add back 2 1/8" = 9 13/16". Height extender measurement would be specified as 9 13/16" in the dialog box offered.

No. This custom extension panel is built to your exact specifications, so it is non-returnable/non-exchangeable.

If you're on the border line of a measurement, it's better to overestimate a little bit (but not too much) as the panel itself can always be shortened down to the lowest end of its range. That said do your best to get the most accurate measurement you can.

The height extension for patio pet door is only for Ideal "Fast Fit" Patio Pet Door, Ideal "Fast Fit" Sliding Glass Cat Doors, and Ideal "E-Cat" Electronic Panel Pet Door

The flap sizes correspond to a certain width, so we ask this in order to determine the width of your panel.

If you have one of the older Ideal Fast Fit models, it is possible that the width is a little different, so we ask this just to double check.

No, this is only compatible with the Ideal "Fast Fit" and "E-Cat" panels.

Chance are no. If it is a short height extension it will more than likely be aluminium only.

For shorter dog door height extension it is not necessary, however, it can help make the connection between the two more secure. For tall heights it is necessary to screw the two together.

The Height Extension is designed exclusively for the Fast Fit and should not be used with other Ideal models or other pet door brands patio panels.

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One Year Warranty And Disclaimer

The new and revised warranty that follows this disclaimer supersedes any and all previous warranties of whatever nature or description, whether express, implied or set by law. Any unexpired warranties shall now be governed by the terms of the new warranty for the duration of the existing warranty’s unexpired term.
Ideal’s pet doors are very durable and with the proper care will provide many years of service for you and your pet. Thank you for selecting Ideal for your pet door. However, please be aware the pet doors are not waterproof against inclement weather or any excessive water exposure. The one year warranty set forth below applies to Ideal’s pet door(s). 
This product has a One Year Warranty from the date of the purchase of the product to be free of manufacturer’s defects in workmanship and materials. This express One Year Warranty is limited only to the original purchaser of the product and is non-transferable. Satisfactory proof of purchase must be provided to the manufacturer for this one year warranty to apply.  In that case, the manufacturer will replace at no charge to the purchaser the defective part(s). No refunds will be provided to the purchaser. No service contract is being provided under this One Year Warranty. Proof of purchase so that the One Year Warranty may be honored must be made to:
Ideal Pet Products, Inc.
24735 Avenue Rockefeller
Valencia, California, USA 91355
Attention: Warranty Department
(661) 294-2266 / 1-877-IDEALPET (433-2573)
Any and all implied warranties are expressly disclaimed and of no force or effect. These warranties include, but are not limited to, the implied warranties of merchantability, implied fitness for any intended purpose, and any warranties under the California Song-Beverly Consumer Act.  
This One Year Warranty is void if damage is due to improper installation, intentional misuse or abuse, repairs by anyone other than the manufacturer, the failure to follow manufacturer’s instructions, or if the product is being used for commercial purposes. Purchaser assumes all risks and liabilities for the misuse or abuse of the product, the commercial use of the product or the failure to follow manufacturer’s instructions.
This One Year Warranty only applies if the product is used for domesticated animals. The Manufacturer, Ideal, is not responsible and shall not have any liability for any damage to or defects caused by acts of god, criminal activity, dog abuse including, but not limited to chewing on the door, lightening, abuse, alteration, trespassing, children’s use of the product, unauthorized access, entry by non-domesticated or “stray” animals, or any other unintended use or misuse of the product.
The Manufacturer, Ideal, disclaims and excludes any liability for incidental, consequential, punitive, general, special or other damages arising out of or connected with the purchase, use, or misuse of the product or concerning any warranty herein.
This One Year Warranty shall be governed by the laws of the State of California, USA. Venue shall be with the Los Angeles Superior Court, North Valley District.
This product, or any of its accessories, parts, or attachments may not prevent adults, children, animals, insects, or objects from passing through or using the opening created by the product.
Ideal Pet Products will not be liable for any unintended or accidental usage, misuse, abuse, criminal conduct, water intrusion, acts of god, damages or injuries occurring or accruing from the use of this product except in strict accordance with Ideal's One Year Warranty accompanying the sale of this product to the original purchaser.