Ideal "Fast Fit" Patio Pet Door

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  • Cost-effective patio pet door insert
  • Does not require any tools for installation
  • Designed for moderate, three-season climates
  • Clear, flexible flap is easy for pets to use
  • Aluminum frames available in white and brushed aluminum (silver)
  • 7-10 day delay in shipping after you receive your tracking number

The Ideal Fast Fit Patio Pet Door is a cost-effective panel with a built-in pet door that fits right into the track of your sliding glass door. With a tool-free installation, this sliding door dog door insert is the perfect choice for rentals and vacation homes, as well as for people who want to avoid making permanent alterations to their sliders. The lightweight, single pane glass and spring-loaded design make for easy installation and removal.

With flap size sizes from small, medium, extra-large to super large, this dog door insert accommodates even the tallest of pets. The clear vinyl flap is lightweight and comfortable to use, allowing both dogs and cats to go in and out with ease. With the Ideal sliding glass pet door insert, your pet will gain newfound independence without compromising your time or energy.

Check out our full selection for other sliding glass door with doggie door options.


  • Single pane, 1/8" glass
  • Clear vinyl flap is thin and flexible
  • Extruded aluminum frame fits into sliding glass door tracks at least 7/8" thick
  • Sliding locking cover included
  • Designed for temperate, three-season climates
  • Solid magnetic lining on the bottom of the flap keeps it shut when it's not in use
  • Customizable sizing available to accommodate your slider and your pet
  • 1 year warranty



  • Economical solution for sliding glass door dog inserts
  • Reduces heating/cooling loss by minimizing the opening and closing of your sliding glass door
  • Sleek design complements the interior design of your house
  • One of the few patio pet doors that has a super-large flap size for tall pets
  • Clear, lightweight flap is easy for pets to use and see-through
  • Gives pets the freedom they need
  • Prevents accidents in the house
  • Pet's accessibility to and from the flap at night prevents sleep interruption


Custom Options:

The Ideal Custom step-over options allow you to tailor your pet door to properly accommodate your pet's size.  Custom orders with a panel and height extension can be purchased if the adjustment ranges do not include the height dimensions of your sliding glass door. Check out the Ideal Custom Fast Fit.

Please Note: Panels ordered with custom step-overs are non-returnable. Custom height extensions are also non-returnable, however since they are a separate piece, the panel would be able to be returned for credit.

Size Chart

Flap SizeFlap DimensionStep OverOverall Panel WidthRecommendedPet Height*
Small5" w x 7" h2"9 3⁄4"6" – 8"
Medium7" w x 11 1⁄4" h4"11 7⁄16"12" – 14 1⁄2"
Extra Large10 1⁄2" w x 15" h8"15 1⁄4"20" – 22"
Super Large15" w x 20" h8"19 5⁄8"24" – 27"



Still don't know which flap size to get? Here is a measurement guide to help you out

Height Adjustment Ranges

  • Short: 75" – 77 3⁄4" (additional cost)
  • Regular: 77 5⁄8" – 80 5⁄16"
  • Tall: 93 3⁄4" – 96 1⁄2" (additional cost)

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

Custom Step-Over Options - These can be extremely important in properly fitting your pets. Especially if you have larger pets sharing with smaller ones, or older dogs that might not be a spry as they used to be.  You can purchase these panels with the custom step over on the Custom Ideal "Fast Fit" Patio Pet Door page or by calling customer service at (800) 826-2871.

Custom Height Add-On Extension - If your sliding glass door track is not accommodated by one of these height ranges, you can special order a panel with a custom made height extension to fit your track. The panel with the extension can be purchased on the Custom Ideal "Fast Fit" Patio Pet Door page.  If you already have the Ideal "Fast Fit" Panel, but it's too short for your slider you can also purchase just the Ideal "Fast Fit" Height Extension, or by calling customer service at (800) 826-2871.

Replacement Flaps and Parts  - Can be found at Ideal "Original" Replacement Flaps or you can get both the flap and the plastic frame at Ideal "Fast Fit" Replacement Flap Assembly.

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



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.

One Year Warranty:

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 the 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 the 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.

Additional Information

Frame Material

Extruded Aluminum

Track Width Minimum


Flap Material


Flap Colors


Flap Thickness


Dual or Single Pane

Single Pane 1/8" Thick

Warranty Period

1 year

Return Period

30 days

Locking Cover Material

ABS Plastic

Your Maximum Pet Size

Cats, Large Cats, Small Dogs, Medium Dogs, Large Dogs, X-Large Dogs

Climate Suitability

Temperate-3 Season, Mild or Utility

House Locking Method

Pin Lock

Flap Design

Single, One Part, Flexible, Thin Flap

Can Be Installed In

Dual Pane Glass Sliding Glass Door, Single Pane Glass Sliding Glass Door

Custom Heights Available


High Aspect Ratio


Award Winning Design


Sealing Value


Wind Resistance


Insulation Value


Installation Instructions

Quick Video on Installing the Fast Fit


To Install the Fast Fit Aluminum Pet Patio Door

Step 1: Release the automatic height adjustment by turning the knobs located near the top of panel counter-clockwise and pressing. The height adjustment panel should fully extend upward (pull up on panel if necessary).

Step 2: Open the sliding glass/screen door.

Step 3: Insert the Fast Fit with the knobs facing inside. Place the top edge into the top track of the sliding glass/screen door. Lift up and swing the lower portion of the panel onto the ridge in the sliding glass door (or screen door).

Step 4: Slide the Fast Fit against the door jamb. Make sure that top is fully extended (not tilted to one side) and the bottom of the panel is on the ridge in the bottom track.

Step 5: Hand-tighten the knobs by turning clockwise to lock the Fast Fit in place.


If you would like to permanently install your panel pet door, you may screw through the aluminum fins that protrude on the existing sliding glass door frame of your door. Drill through the fins into the Fast Fit. Install two screws in the top and two in the side by the bottom of door. Do not put any screws into the frame by the glass of the Fast Fit as breakage may occur.


Optional Permanent Placement for Fixed Panel Sliding Door:

Remove the screws that hold the fixed glass panel in place and slide it over. Insert the Fast Fit panel between the stationary panel and it's jamb. Re-fasten the fixed glass panel.


Installing Security Lock (Optional):

Step 1: With the sliding door in a closed position, place the lock in the desired location with the bolt in the retracted position, pointed toward the sliding glass door or stationary window rail. Leave approximately ⅛” clearance between the bolt tip and the aluminum rail (Figure 5).

Step 2: Holding the lock firmly in place, mark the screw holes and center of the bolt in the rail of the sliding door or stationary window.

Step 3: Drill two 5⁄32" holes for the mounting screws and a â3/8” hole for the locking bolt.
Caution: Do not drill into glass.

Step 4: With the sliding door in the closed position (with Fast Fit installed), mark the position for the second set of holes.

Caution: Do not drill into glass.


How to Measure Your Sliding Glass Door for a Pet Door


Can this be used with vinyl sliding glass doors?

Generally, yes. The big difference between the two types of sliding glass doors is the thickness or width of the track. As long as your track is at least 7/8" wide, this can fit your patio door. If you have a taller sliding glass door, we recommend that you either add shims or toenail the panel in for added stability. If you have concerns, you can email our Customer Service team with some photos of your track, and we can let you know.

Do the Ideal Fast Fit Pet Doors for sliding doors require tools for installation?

The patio pet door insert doesn't. It is meant to be fairly easy to install, so you can take it out if needed. However, you will need tools if you want to install the locking mechanism, as it requires drilling holes into the frame of your slider. You can avoid this by locking your slider against the panel using a Charley Bar or dowel in the track.

Will I still be able to use my sliding glass door lock after it is installed?

The Fast Fit panels will not be able to lock into an existing slider door, as there are so many types of door locks they cannot mate with the dog door insert. This door includes a pin lock or you can go with a dowel in the track or Charley Bar.

Will I still be able to use my sliding glass door after it is installed?

When the pet door is installed, you will lose some space to walk through. To make sure that you have enough room, we recommend that you check the overall width of the size that you want, especially when purchasing this panel in the super-large flap size. If you are looking for an option that won't obstruct the use of your sliding glass door, we would recommend the Pet Door Guys - "In The Glass" units.

How do I know what size I should get for my pet?

We recommend that you measure your pet using the methods described in this video, or via the Measure Your Pet page. 

Will this work for large and small pets sharing?

Yes. The flaps are light enough for small pets to push. We recommend a custom lower step-over height to make it easier for the shorter pet to use. The flap should also be large enough for the tallest pet to use without bending down.

How does this door hold up in the winter?

The flap will likely blow open with mild wind since this is a more economical doggy door. When more extreme weather occurs, we recommend that you place your locking cover over the pet door or remove the panel.

Can I use a different, more wind resistant flap with this?

Unfortunately, flaps are not interchangeable between pet doors. Panels also do not offer double flaps. In order to get a more wind resistant flap, you would need to get a more energy efficient unit.

Does the Ideal Fast Fit Panel have an adjustable step-over?

No, the Fast Fit does not have an adjustable step over. You can get a custom step-over. Keep in mind that the custom step over cannot be adjusted once built, and it does make the item non-returnable.

Does the Ideal Fast Fit Panel door include a Draft Stopper?

Yes, this door does come with a black draft stopper and a black foam weatherstrip. You can order a white patio pacific draft stopper for an additional cost.

What is the frame thickness of the Ideal Fast Fit Dog Door?

The Fast Fit Aluminum Pet Patio Door is 7/8" thick.

Does the Fast Fit come with a cat door option?

A cat could use this door, but the Ideal "Fast Fit" Sliding Glass Cat Doors is made specifically for cats with a cat flap.

Can I purchase the flap and frame together for my Ideal Fast Fit panel?

Yes, the Ideal Fast Fit Flap and Frame Assembly is available for purchase. Please make sure you are ordering the correct logo for your specific panel. If you no longer have the original flap, you can figure out what logo you have a couple of other ways. You can measure the entire width of the panel, as these measurements changed when the manufacturing location did. Another option is to unscrew the frame from the patio panel. If it's one piece that screws directly into the sides of the aluminum frame, it's an old-style rectangular logo. If the frame is two pieces that screw into each other (not the metal panel directly), then it is a new-style round logo. If you still have the original flap (plastic frame), you may be able to figure out which flap and frame you need by looking at this page.

What if I am at the top of the adjustment range?

Ideal does offer a height extension, but you can also make up for slight height issue by sliding a piece of wood in the top channel that is cut to size. This should give the panel enough tension at the top to hold it in place.

What if I am at the bottom of the adjustment range?

You can actually trim up to 3/4" off the spring load at the top. It is 1/8" in thickness. This is done with a jigsaw using a metal cutting blade.

Can I add magnets to this dog door for the patio dog door?

No, the flap has a magnet bar across the bottom. Additional magnets cannot be added.

Do you recommend the Ideal Fast Fit for a mesh screen door?

No. It is designed to fit in the track of your sliding glass door, not the screen. We do have a variety of other screen sliding door options.

I'm on a budget and need a dog door sliding glass door insert. What do you recommend?

The budget sliding glass door pet door insert we recommend is the Ideal "Fast Fit" Patio Pet Door.

I have an older silver sliding glass door, what budget dog door sliding door insert do you have?

The Ideal "Fast Fit" Patio Pet Door is a dog door insert for sliding glass doors that is available in brushed aluminum (which is a silver color).

I need a 74" right side sliding door doggie door insert, but don't see one that size. What can I do?

The Ideal Fast Fit doggy door for sliding doors has a minimum height of 75", but can be trimmed down to 74". This will not work if your sliding glass door has a track wall on both sides. If it does have this wall, you will need to order a Custom Height Endura Flap Pet Door insert.

What pet door for renters do you recommend for sliding door inserts?

The sliding glass door pet door insert we recommend for renters is the Ideal "Fast Fit" Patio Pet Door panel due to its no-tools installation and removal and lower cost.

Where can I find a replacement sliding glass door gap filler?

We recommend the Draft Stopper. It will fill in the gap between the operational panel and fixed panel of your sliding glass door.

I need a budget-friendly doggy doors for sliding glass doors to fit my 76" tall door. Can you help?

The doggy door insert we recommend is the Ideal Fast Fit Shorty pet door. It installs without tools and fits tracks 75" - 77 3/4" tall.

Can the 01RIFF Ideal Fast Fit Patio Pet Door be removed when I go out of town and my dog is boarded?

Yes. It uninstalls as easily as it installs.

What can I do if the fast fit aluminum pet patio door is too short for my sliding glass door?

You can add a custom made height extension to make it taller. If you're buying a new panel, buy from the Custom Ideal Fast Fit. If you already have a Fast Fit panel, you need to buy the Ideal Height Extension only.

Will this take up too much space in my slider?

The panel will take up some space, and some pet owners have said that they have trouble squeezing by it. Some alternative options include line of Doors 4 Pets and People and Pet Door Guys pet doors.

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