Ideal "Fast Sash" Pet Doors For Windows


  • Affordable solution to put a pet door in your sash window
  • Easy no tools installation make it optimal for renters and vacation homes
  • Clear and flexible flap makes training your pet easy
  • Comes in 5 adjustment ranges to fit any size window
  • Manufacturer has a 1 year warranty

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Stock No: 07RI

Availability: In stock

Price From: $149.99
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Price From: $149.99

Ideal "Fast Sash" Pet Doors For Windows

Our pet door smoothly fit into any window for a quick and easy installation.

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  • Affordable solution to put a pet door in your sash window
  • Easy no tools installation make it optimal for renters and vacation homes
  • Clear and flexible flap makes training your pet easy
  • Comes in 5 adjustment ranges to fit any size window
  • Manufacturer has a 1 year warranty
Flap SizeFlap DimensionHeight to Raise WindowStock No 
Small5" x 7"13 3/4"07RI02 
Medium7" x 11 1/4""17 7/8"07RI03 
Extra Large10 1/2" x 15"21 15/16"07RI05 
Super Large
15" x 20" 07RI06 

Adjustment Ranges

  • 23" - 28"Custom Order (not available for Extra Large)
  • 27" - 32"Custom Order
  • 33" - 38"
  • 37" - 42"Custom Order
  • 40" - 45"Custom Order
  • 45" - 50"Custom Order

Final Sales   Adjustment Ranges other than 33" - 38" are final sales and cannot be returned. Custom positioning options are also final sale and cannot be returned.

Ideal Fast Sash For Windows

This cat and dog door for sash windows is one of the most versatile and economical solutions out there. The spring-loaded design fits windows of almost any size, and it perfect for a temporary or semi-permanent installation. There is no doubt that this is the best choice if you want a good product on a budget!

Features of the Fast Sash

  • Clear vinyl flaps range from Small to Xlarge, and incorporate a magnetic strip at the bottom to help keep it sealed.
  • The single pane glass is optimal for moderate or less extreme climates.
  • Renters love this model, spring loaded design on each end makes installation or removal a breeze, without the use of any tools.
  • Multiple adjustment ranges will fit windows from 23” all the way up to 50” in width (adjustment ranges other than 33” - 38” are custom final sales and non-returnable).
  • Locking cover included allowing you to close off the pet door when not in use (note that the door slides in from the top on the inside of the house, so be careful to check and see if there is anything above it that would interfere).
  • The frame is white aluminum and will fit into tracks as small as 7/8” wide.

Perfect Time for an Ideal Sash

  • Your dog or cat is smaller or more timid than most. If that is the case the clear vinyl flap is easy to use and much more user friendly your pets.
  • Large pets sharing with a smaller pet, as the flaps are not as tough to push through even in the larger sizes.
  • Not having to use tools means no holes drilled that would ruin the window track and cost you your deposit.
  • This is one of the only sashes for dogs that won’t break the bank.

Customer Reviews

Set Direction
  • Fantastically easy to install review by Barbara
    5 5 Fantastically easy to install

    I bought the 27 to 32 size by mistake; the Customer Service person got on the phone with the manufacturer to get me the size I needed, so the right size arrived and went in beautifully. Great company to work with, excellent products.

    (Posted on 2/24/2017)

  • My cats are to smart or red lock not good enough! review by TLM
    5 2 My cats are to smart or red lock not good enough!

    Loved the idea, especially the in without being anle to go back out when we leave for the evening and they are not around. Well, both cats figured out a way to get it open. So we would bring in and lock it with no in/out and they figured out how to jimmy that open too! For the price I paid it is useless for us to use. Back to opening the garage for the day, hunt before leaving at night, and tons of leaves to blow out in the fall. :-(

    (Posted on 1/20/2017)

  • See above review by Janey
    5 3 See above

    Well after a good 7 months the racoon's figured out how to use the cat door so i had to take it out. The microchip is the way to go for my 2 cats I think. Only way to keep them out.

    (Posted on 9/19/2016)

  • love it review by kitty4
    5 4 love it

    Perfect for our small dog and our fattest cat!
    Only downfall is heavy winds blow it open.

    (Posted on 3/28/2016)

  • cat door review by yoyo
    5 5 cat door

    We love it. The cats are getting used to it. It takes them a while since they are cats and we know how they are. Most go in and out with no problems as they have gotten used to the door that they can see through. Also had to get used to the new odor. We highly recommend this door to any cat who needs one.

    (Posted on 2/22/2016)

  • Love this door review by Jeanster
    5 5 Love this door

    Love this pet door. I got the door because one of my furbabies, Demo, was refusing to use the litter box inside. He wanted to use the great outdoors like his doggie brother and sister. This gives Demo the freedom to go outside and now I no longer have to clean up after him. I only give it 4 stars because the adjustable sides are a bit flimsy.

    (Posted on 11/28/2015)

  • Life Saver!! review by Carol
    5 5 Life Saver!!

    We love our pet window! It give the dogs the freedom to go in and out as they need to! Easy to install and they learned quickly how to go in and out of it!

    (Posted on 10/2/2015)

  • better than expected review by SO
    5 5 better than expected

    This door took 5 minutes to install and my dog learned to use it in another 2 minutes. Those 7 minutes have freed me from having to go home to let her out, or to clean up broken glass when she lunged at squirrels from inside the house...

    She's been using the door very frequently for about three months now and there have been zero problems with it. If only my cat would learn how to use it...

    (Posted on 6/22/2015)

  • I'd buy it again! review by Charlotte
    5 5 I'd buy it again!

    Great door. It took my 16 year-old daughter 10 minutes to install. My two dogs, an English Springer Spaniel and a Siberian Husky rough-house everyday, bolting in and out of this door. They slam into it and both try to fit through at the same time while they are play fighting. Still working great after three months of this. I like that it closes with a magnet vice a mechanized lock. The dogs learned to use it in two days, well it took the husky two days. The Springer took about 30 minutes.

    (Posted on 2/14/2015)

  • Great! review by Jim
    5 5 Great!

    All 4 cats including the 18 pounder use the medium cat window. Easy to install and fits well.

    (Posted on 12/28/2014)

  • Very Pleased!!!!!. review by Karen
    5 5 Very Pleased!!!!!.

    Love it. I have large door. My dogs are Yellow Lab, Maltese and tiny Silky Terrior. They all use it with no problems. Very happy with this product. And it looks really good because of side windows.

    (Posted on 10/9/2014)

  • Window Doggie Door review by Bailey
    5 5 Window Doggie Door

    We love our window Doggie door. It installed in seconds, took only a few minutes to train our dog and POOF he's outside enjoying the sun and the birds. We have floor to ceiling windows but if I lived in a house with higher windows I'd still use this product and use doggie stairs (like you use for a bed) so he could get in and out.

    (Posted on 8/16/2014)

  • The best solution!! review by leaveittolinda
    5 5 The best solution!!

    No where to install a pet door, so the window pet door was the perfect training neccessary.Andy knew exactly what to do right after it was installed. (which is super simple) My window is elevated a little off the floor, so I did have to create a "step" on the outside of the house......would highly recommend this product!

    (Posted on 7/1/2014)

  • Great product review by Boo
    5 5 Great product

    It took me almost a year to finally spend the money for this pet door-I wished I had done it sooner! I have a very active Vizla who wants in/out/in/out/in/out , you get the picture. It took about 20 minutes of bribing her with treats to push through the clear flap. We did put a plastic tote on the outside so she didn't have a big drop off from the window sill. No problems with installation and pleased with fit in the window. We have had this door in place for at least 6 months of constant use and have no complaints. I highly reccommend this door for those of you get tired of the in/out game.

    (Posted on 6/11/2014)

  • Excellent product! review by Mike
    5 5 Excellent product!

    Good price.Easy to install.Quality merchadise. Our chuweenie wiil use her medium size dog door even when the people door is open!

    (Posted on 5/19/2014)

  • Awesome door! review by Lisa
    5 5 Awesome door!

    I bought 2 for my dogs! One is in the front the other is in the back! The dogs come and go when ever they like! They fit perfectly and are very simple to put in! I added window locks at the top of the windows so no one can pull the windows open. I love these windows! My dogs do also! Unfortunately the UPS delivery man does not! Lol

    (Posted on 5/9/2014)

  • GREAT! review by Tess
    5 5 GREAT!

    I bought one of these pet windows 4 years ago.

    I have moved and taken it with me. I love it. My cats love it.

    It's a great product. I have used it in 2 different windows and had no problems installing. It is durable and easy to clean.

    (Posted on 4/28/2014)

  • Wonderful review by PW
    5 5 Wonderful

    Love this window insert with dog door. Great addition to any home with a window and a dog.

    (Posted on 3/13/2014)

  • Flap not so good review by Jeff
    5 3 Flap not so good

    Sorry not very happy with the dog door itself, the flap has a gap in it that runs all the way around and does not seal. Lets a lot of air from the outside come in. Other dog doors I've used utilize a flap that mats to the other that seals so air can't come in.

    (Posted on 2/4/2014)

  • Love my door review by Max the Dog
    5 5 Love my door

    I am Max, the Dog. They got me this door to go in the window so I could get in and out when I want too. I love it! It is the perfect size for me. I have learned to hit it at almost full speed and it opens and snaps shut every time.
    It keeps the cold air out and seals right up. My people had it out of the box and installed in less than 5 mins. Took me even less to figure out how to use it, but I am smarter than they are.
    Bottom line, I love it. No more sitting with my legs crossed while they try to figure out I need to go outside or having to wait for commercials for someone to get up and open the door.
    Thanks for a great door for me!

    (Posted on 11/24/2013)

  • Great dog door! review by Wirrage
    5 5 Great dog door!

    We have been really happy with this dog door. Install was a breeze and we haven't had a single issue. It's been great having the dogs come and go as they please. No regrets whatsoever!

    (Posted on 9/7/2013)

  • Love it review by TraciD
    5 5 Love it

    I don't know why I didn't purchase this sooner. My cockapoo loves this door and uses it all the time. It was so easy to install and has been working great for months.

    (Posted on 8/19/2013)

  • Life Saver! review by Nlundschen
    5 5 Life Saver!

    I bought this for my puppy as the getting up and down while I was recovering from surgery just wasn't going to be easy. She was potty trained all ready and learned very quickly to use the door. There were no accidents, she feels independent and can go out and bark at the cats and squirrels. I feel free of the up and downs and my recovery has progressed nicely.

    (Posted on 7/15/2013)

  • Great dog door that offers peace of mind review by Peace of mind
    5 5 Great dog door that offers peace of mind

    This was the second "fast sash" window I ordered from America's Finest Pet Doors. It arrived on time and is so easy to install. I have four dogs and need to keep them separate, so with the two sash doors I can give my dogs access to different yards. These pet doors fit great in the windows and are also easy to move if needed.

    (Posted on 4/29/2013)

Weight 40.0000
Manufacturer Ideal Pet Products
Your Maximum Pet Size Cats, Large Cats, Small Dogs, Medium Dogs, Large Dogs
Type of Window Sash (Up & Down)
Climate Suitability Mild or Utility
Sealing Value Low
Wind Resistance Low
Color White
Frame Material Extruded Aluminum
Insulation Value Low
Flap Material Vinyl
Flap Design Single, One Part , Flexible, Thin Flap
Flap Colors Clear
Flap Thickness 1/8"
Replacement Flaps Available Yes
Dual or Single Pane Single Pane 1/8" Thick
Ability to Lock Flap Separate Locking Cover-Loads from Top
Locking Cover Material ABS Plastic
Can Be Installed In Sash Windows
Warranty Period 1 year
Return Period 30 days
Manufacturer's Restocking Fee 0

The Ideal "Fast Sash" Installation

Q: What 3 things do I have to know/measure when choosing a pet door for sash window?

A: Track width, Height you can raise the window, How wide the window is from left to right.

Q: Are the Ideal Sash Windows made with dual pane glass?

A: No, they are made with ⅛” thick single pane glass.

Q: Can I lock the Ideal Fast Sash for Windows?

A: Yes, it comes with a locking cover that slides in from the top of the sash window.  You will need to double check to make sure that there is no lip sticking out on the frame that closes down on top of the sash pet door because that would get in the way of sliding in the cover.

Q: What is the return policy for the Ideal Fast Sash?

A: Return period is within 30 days, and there is a 15% restocking fee. However, adjustment ranges other than 33" - 38" are final sales.  Along with any sashes where the cat door has been ordered to the right or to the left.

Q: How wide does the track have to be for the Ideal Sash Windows?

A: The track needs to be at least 7/8" wide for the Ideal Sash Windows.

Q: If my window is a little smaller than the adjustment ranges for the Ideal Sashes, is there anything I can do?

A: You can trim the flanges using a jig saw with a metal cutting blade or a hacksaw.  On these models you can can trim both sides if you need to which gives you about 1-¾” of wiggle room for mis-measures.

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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.