Ideal "Fast Sash" Pet Doors For Windows
- Effortless installation: The Ideal "Fast Sash" Pet Door for Windows requires no tools and accommodates sash windows with a minimum track thickness of 7/8"
- Versatile sizing: Offers six width options for sash windows, fitting small cats to medium-sized dogs with various flap sizes available
- Mild climate design: Ideal for moderate weather conditions and available exclusively in white
- Custom sizes: Made-to-order custom sizes are available but not returnable, so measure your window accurately
- Locking cover included: Gain control over your pet's outdoor access with a secure locking cover
Product Details
Sizing & Fit
Installation Guide
FAQs
ReviewsProduct Details
Elevate your pet's comfort and freedom with the Ideal "Fast Sash" Pet Doors for Windows. This high-quality pet door solution is designed for seamless integration into your sash windows, ensuring that your furry friend can access the outdoors without disturbing your daily routine.
The spring-loaded design with five adjustment ranges allows for easy installation and removal, making it an ideal choice for homeowners, renters, and those looking for a temporary or semi-permanent pet door solution. The clear, vinyl flap material lets your pet see through the door, helping them adapt quickly and easily.
Constructed with a white aluminum frame, the Ideal "Fast Sash" Pet Door is designed to fit sash windows with a minimum track thickness of 7/8" and is available in six width options. The single-pane glass is suitable for moderate climates, ensuring your pet's comfort and safety. Additionally, a locking cover is included for added security and control over your pet's outdoor access.
Custom sizes are available for a perfect fit, but please note they are made-to-order and non-returnable, so be sure to measure your window accurately before ordering. Easy to install and remove, the Ideal "Fast Sash" Pet Door for Windows is an excellent investment in your pet's happiness and well-being.
Please be sure to look a the "HEIGHT TO RAISE WINDOW" column to ensure your sash window will accommodate the height of the panel.
Features:
- Spring-loaded design: Easily adjustable with five adjustment ranges for multiple window sizes
- Clear, vinyl flap: Allows pets to see through, easing their adaptation to their new door
- White aluminum frame: Seamlessly matches common window features and fits into tracks between 7/8" and 1 1/4" wide
- Single-pane glass: Suitable for moderate climates and maintains your pet's comfort and safety
- Convenient and portable: Perfect for homeowners, renters, and those seeking a temporary or semi-permanent fixture
Size Chart
- Medium 7"w x 11 1/4"h
- Extra Large 10 1/2"w x 15"h
Flap Dimensions:
7"w x 11 1/4"h
The entry way your dog goes through.
Height to Raise Window
17 7/8"
The outer edge of the pet door.Flap Dimensions:
10 1/2"w x 15"h
The entry way your dog goes through. Height to Raise Window
21 15/16"
The outer edge of the pet door.| Flap Size | Flap Dimension | Height to Raise Window | Recommended Pet Height |
|---|---|---|---|
| Medium | 7" x 11 1⁄4" | 17 7⁄8" | 5" - 16" |
| Extra Large | 10 1⁄2" x 15" | 21 15⁄16" | 5" - 23" |
Do not know which flap size to get? Here is a measurement guide to help you out
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.
Wondering how to measure your track? Review our Track Measuring Guide.
Installation Instructions
Difficulty
Easy
Steps
05
Time Required
0.5 Hours
Sections
01
Flags
00
Parts
- Fast Sash Panel
- Foam Weather Seal
- Vinyl Draft Seal
Tools
- Safety Goggles
- Tape Measure
- Scissors
Please read instructions & notes thoroughly before installation.
Step 1 Test Fit the Panel
- Raise your sliding sash window frame to its fully open position and place the pet door assembly between the window sill and the open sash window frame.
Step 2 Adjust the Knobs
- Turn the silver knobs counter-clockwise to release the end spacers.
Step 3 Tighten the Panel
- Turn the silver knobs clockwise to tighten and lok the end spacers in position.
Step 4 Install the Foam Seal
- Measure the top of the installed aluminum sash window pet door. Unroll and cut foam bumper seal to this length.
- Peel off the protective backing and attach along the top edge of the pet door, pressing firmly as you go.
- Lower the sliding sash window frame until it touches onto the foam bumper seal.
Step 5 Install the Draft Seal
- Measure the top of the sliding sash window frame from the left edge of the latch to the outside edge of the top frame.
- Cut the vinyl draft seal to this measurement.
- Peel off the protective backing and attach along the top edge of the sliding sash window window frame, making sure the inside flexible edge touches the glass opposite the sliding sash window frame.
- Repeat this step for the right side.
Videos
How to Measure Your Sash Window for a Pet Door
FAQ
What three things do I have to know/measure when choosing a pet door for sash window?For the Ideal Fast Sash Pet Door for windows, you need to check three things: track width, height (so you can raise the window), and how wide the window is from left to right. |
Are the Ideal Sash Windows made with dual-pane glass?No, these aluminum sash window inserts are made with a thick single pane glass. |
Can I lock the Ideal Fast Sash for Windows?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. Note: It is not a 4 way lock as the locking cover effectively blocks both directions of travel. |
What is the return policy for the Ideal Fast Sash?Return period is within 30 days, and there is a 15% restocking fee. However, adjustment ranges other than 33" - 38" are final sales. Window mount pet door sashes where the cat door has been ordered to the right or to the left. |
How do I measure my window?You will want to measure the width of your window track to determine the adjustment range you need; measure from deep inside the window track on the left to deep inside the window track on the right. |
How wide does the track have to be for the Ideal Sash Windows?The track needs to be at least 7/8" wide for the Ideal Sash Windows. If your track is thicker than 1 ¼" inches, you may consider putting in shims in the window frame to make the sash more stable in the frame. |
If my window is a little smaller than the adjustment ranges for the Ideal Sashes, is there anything I can do?You can trim the flanges using a jigsaw with a metal cutting blade or a hacksaw. On these models, you can trim both sides if you need to, which gives you about 1-¾" of wiggle room for mismeasures. |
Is this well insulated? How weatherproof and energy-efficient is this?The door features single pane glass, which is optimal for moderate or less extreme climates. We recommend weatherstripping on every installation. |
Are there any screws or permanent type of attachments? I would like to remove it in the winter.There is nothing permanent about it. The the window sash cat door uses a spring-loaded design to fit windows of almost any size, and is perfect for temporary or semi-permanent installation. Installing the door requires no tools. |
Is this a vinyl flap or a hard plastic cat door?The cat flap door is a clear vinyl, which is designed to be easy to use for your pets. The flexible flap makes it easy as a large cat door. Some small cats may have more trouble with its weight. |
I need the larger width of 33" to 38", but that description says the door opening is smaller. My window measures 32.5". One size listed goes up to 32", next size is 33+". Which of these, if any, will work for me?If you go with the 27" - 32" range, you can add space on either side using shims. If you go with the 33" - 38" range, and that is too big, up to 1" can be trimmed off of either side of the door to make it fit. |
How do you teach your cats to use the Cat Door For Windows?Window sash cat doors can be a little difficult for timid pets at first. Encourage your cats to go through the door by holding the flap open for them at first, and beckoning them through with the offer of treats on the other side. Repeat the process several times while gradually lowering the flap, so it begins to graze their back as they pass through and they get used to using the flap itself. For the most part, if there is a platform on the other side of the window, training is the same as training them on an exterior door, interior door, or even pet screen door. Most flap openings operate the same way. |
Wait, is this really only for cats?Even though most customers use this as a window sash cat door, larger pets can use it too. A dog door for windows would need to be ordered in one of the larger sizes, just make sure that your window opens up high enough to get it in the track. This Ideal Pet Products panel's dimensions only go up to 10.5" w x 15" h, so it is really important to measure your pets. |
Is this one of the Vinyl Sash Window Pet Doors?The sash is actually aluminum, but it can be used in vinyl windows as long as all the dimensions line up. |
Will this work in my vinyl window?It will. There are many window manufacturers with different designs. You may need to shim or install a stop to ensure the pet door is securely installed in your window. We encourage the use of weatherstripping, regardless of window design. |
Is this panel electronic or automatic?No, this is solely a manual flap. We do have options for microchip cat doors, collar tag door flaps, and an electronic cat door for horizontal sliding windows, as well as brands like SureFlap, CatMate, and other Ideal Pet Products aluminum sash windows. You can find them all on our page on Pet Doors for Windows. |
Warranty
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.
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.
Warning:
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.
Customer Reviews
Size Chart
- Medium 7"w x 11 1/4"h
- Extra Large 10 1/2"w x 15"h
Flap Dimensions:
7"w x 11 1/4"h
The entry way your dog goes through. Height to Raise Window
17 7/8"
The outer edge of the pet door.Flap Dimensions:
10 1/2"w x 15"h
The entry way your dog goes through. Height to Raise Window
21 15/16"
The outer edge of the pet door.| Flap Size | Flap Dimension | Height to Raise Window | Recommended Pet Height |
|---|---|---|---|
| Medium | 7" x 11 1⁄4" | 17 7⁄8" | 5" - 16" |
| Extra Large | 10 1⁄2" x 15" | 21 15⁄16" | 5" - 23" |
Do not know which flap size to get? Here is a measurement guide to help you out
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.
Wondering how to measure your track? Review our Track Measuring Guide.
Difficulty
Easy
Steps
05
Time Required
0.5 Hours
Sections
01
Flags
00
Parts
- Fast Sash Panel
- Foam Weather Seal
- Vinyl Draft Seal
Tools
- Safety Goggles
- Tape Measure
- Scissors
Please read instructions & notes thoroughly before installation.
Step 1 Test Fit the Panel
- Raise your sliding sash window frame to its fully open position and place the pet door assembly between the window sill and the open sash window frame.
Step 2 Adjust the Knobs
- Turn the silver knobs counter-clockwise to release the end spacers.
Step 3 Tighten the Panel
- Turn the silver knobs clockwise to tighten and lok the end spacers in position.
Step 4 Install the Foam Seal
- Measure the top of the installed aluminum sash window pet door. Unroll and cut foam bumper seal to this length.
- Peel off the protective backing and attach along the top edge of the pet door, pressing firmly as you go.
- Lower the sliding sash window frame until it touches onto the foam bumper seal.
Step 5 Install the Draft Seal
- Measure the top of the sliding sash window frame from the left edge of the latch to the outside edge of the top frame.
- Cut the vinyl draft seal to this measurement.
- Peel off the protective backing and attach along the top edge of the sliding sash window window frame, making sure the inside flexible edge touches the glass opposite the sliding sash window frame.
- Repeat this step for the right side.
Videos
How to Measure Your Sash Window for a Pet Door
FAQ
What three things do I have to know/measure when choosing a pet door for sash window?For the Ideal Fast Sash Pet Door for windows, you need to check three things: track width, height (so you can raise the window), and how wide the window is from left to right. |
Are the Ideal Sash Windows made with dual-pane glass?No, these aluminum sash window inserts are made with a thick single pane glass. |
Can I lock the Ideal Fast Sash for Windows?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. Note: It is not a 4 way lock as the locking cover effectively blocks both directions of travel. |
What is the return policy for the Ideal Fast Sash?Return period is within 30 days, and there is a 15% restocking fee. However, adjustment ranges other than 33" - 38" are final sales. Window mount pet door sashes where the cat door has been ordered to the right or to the left. |
How do I measure my window?You will want to measure the width of your window track to determine the adjustment range you need; measure from deep inside the window track on the left to deep inside the window track on the right. |
How wide does the track have to be for the Ideal Sash Windows?The track needs to be at least 7/8" wide for the Ideal Sash Windows. If your track is thicker than 1 ¼" inches, you may consider putting in shims in the window frame to make the sash more stable in the frame. |
If my window is a little smaller than the adjustment ranges for the Ideal Sashes, is there anything I can do?You can trim the flanges using a jigsaw with a metal cutting blade or a hacksaw. On these models, you can trim both sides if you need to, which gives you about 1-¾" of wiggle room for mismeasures. |
Is this well insulated? How weatherproof and energy-efficient is this?The door features single pane glass, which is optimal for moderate or less extreme climates. We recommend weatherstripping on every installation. |
Are there any screws or permanent type of attachments? I would like to remove it in the winter.There is nothing permanent about it. The the window sash cat door uses a spring-loaded design to fit windows of almost any size, and is perfect for temporary or semi-permanent installation. Installing the door requires no tools. |
Is this a vinyl flap or a hard plastic cat door?The cat flap door is a clear vinyl, which is designed to be easy to use for your pets. The flexible flap makes it easy as a large cat door. Some small cats may have more trouble with its weight. |
I need the larger width of 33" to 38", but that description says the door opening is smaller. My window measures 32.5". One size listed goes up to 32", next size is 33+". Which of these, if any, will work for me?If you go with the 27" - 32" range, you can add space on either side using shims. If you go with the 33" - 38" range, and that is too big, up to 1" can be trimmed off of either side of the door to make it fit. |
How do you teach your cats to use the Cat Door For Windows?Window sash cat doors can be a little difficult for timid pets at first. Encourage your cats to go through the door by holding the flap open for them at first, and beckoning them through with the offer of treats on the other side. Repeat the process several times while gradually lowering the flap, so it begins to graze their back as they pass through and they get used to using the flap itself. For the most part, if there is a platform on the other side of the window, training is the same as training them on an exterior door, interior door, or even pet screen door. Most flap openings operate the same way. |
Wait, is this really only for cats?Even though most customers use this as a window sash cat door, larger pets can use it too. A dog door for windows would need to be ordered in one of the larger sizes, just make sure that your window opens up high enough to get it in the track. This Ideal Pet Products panel's dimensions only go up to 10.5" w x 15" h, so it is really important to measure your pets. |
Is this one of the Vinyl Sash Window Pet Doors?The sash is actually aluminum, but it can be used in vinyl windows as long as all the dimensions line up. |
Will this work in my vinyl window?It will. There are many window manufacturers with different designs. You may need to shim or install a stop to ensure the pet door is securely installed in your window. We encourage the use of weatherstripping, regardless of window design. |
Is this panel electronic or automatic?No, this is solely a manual flap. We do have options for microchip cat doors, collar tag door flaps, and an electronic cat door for horizontal sliding windows, as well as brands like SureFlap, CatMate, and other Ideal Pet Products aluminum sash windows. You can find them all on our page on Pet Doors for Windows. |
Warranty
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.
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.
Warning:
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.
