PetSafe Horizontal Window Pet Door
- Quick installation for sliding windows, no drilling or cutting required.
- Adjustable height up to 3 inches for a perfect fit in most horizontal sliding windows.
- Corrosion-resistant aluminum framing and durable plastic PetSafe pet door.
- Door cover included for controlled pet access, ideal for cats and small dogs.
-
All Customs are final sales and cannot be returned. Please allow 3 - 4 weeks for custom models to be built and shipped.
- For Custom sizes we will need more information to complete your order. Your emailed Order Confirmation will have an Orange button with "Finish Your Order". Click on it to enter your Custom Measurements.

Product Details
The PetSafe Horizontal Window Pet Door is a quick and affordable solution that provides your furry friends the freedom to come and go as they please. Designed for cats and small dogs, this pet door offers a hassle-free installation process that requires no drilling or cutting, and fits seamlessly into most horizontal sliding windows.
The PetSafe pet door features a flexible vinyl flap that ensures easy use for all small pets, and a single-pane, tempered glass design that provides durability and safety. With its spring-loaded design, the pet door allows for instant adjustment of up to 3 inches, creating a snug and weather-tight fit in your window. The built-in Anti-Whoops feature offers a 3/4" change in adjustment range to compensate for small measuring errors, giving you peace of mind during installation.
Custom sizes are available for those who need a more tailored fit, with a 3-4 week processing time. Please note that custom sizes are non-returnable. To maintain control over your pet's access, a closing cover is included that snaps on over the pet door. It may require some additional effort to remove, but this ensures that your pet cannot easily dislodge it.
The PetSafe Horizontal Window Pet Door is an ideal choice for those seeking a low-impact installation method that offers convenience and freedom for both pets and their families.
Not the door you're looking for? You can also browse other PetSafe pet doors.
Features:
- Flexible vinyl flap ensures easy use for all small pets.
- Single-pane, tempered glass design provides durability and safety.
- Spring-loaded design enables instant adjustment and a snug, weather-tight fit.
- Built-In Anti-Whoops allows for 3/4" change in adjustment range to compensate for small measuring errors.
- Control access with the closing cover that snaps on over the pet door.
- Adjustment Ranges accommodate windows 34" - 37" and 36 " - 49" in height. Custom sizes available, although they are non-returnable so be sure your track width is at least 1".
- Custom sizes are available and take 3 - 4 weeks for processing.
- Control access with closing cover that snaps on over the cat door for sliding windows.
Benefits:
- Low-impact installation method, no drilling or cutting.
- Lightweight pet door flap for easy use by pets.
- Allows pets to come and go as they please.
Size Chart
- PetSafe Horizontal Window Pet Door5 1/8"w x 8 1/4”h
Flap Dimensions:
5 1/8"w x 8 1/4”h
The entry way your dog goes through.

Overall Panel Width
11 1/8"
How wide the panel is overall.Flap Size | Flap Dimension | Overall Panel Width | Recommended Pet height |
---|---|---|---|
Small | 5 1/8" x 8 1/4" | 11 1/8" | 6" - 11" |
Adjustment Ranges:
- 34" - 37"
- 46" - 49"
Pet door has 1" framing, measure your track width to make sure that your window will accommodate the panel.
Wondering how to measure your track? Review our Track Measuring Guide demonstrated on a sliding glass door.
Still do not know which flap size to get? Here is a measurement guide to help you out
Find The Best Pet Door Size For My Pet

A
Pet Height: inches
B
Pet Width: inches
Installation Instructions
Parts
- Panel Pet Door
- Closing Cover
Tools
- Flathead Screwdriver
Please read instructions & notes thoroughly before installation.
Step 1 Release Spring Mechanism

- Release the automatic height adjustment locks by loosening the screws with a screwdriver.
Step 2 Insert the Panel Into the Track

- Insert the cat door panel with the knobs facing inside. Place the top edge into the top track of the window. Lift up and swing the lower portion of the panel into the bottom track.
Step 3 Adjust the Panel

- Slide the pet door panel against the window jamb. Make sure that the top is fully extended (not tilted to one side) and the bottom of the panel is on the ridge (pencil rail) in the bottom track.
- Tighten the height adjustment locks with a screwdriver.
PetSafe Window Panel Tips
Removing the Press-Fit Closing Cover
- Step 1: Place thumbs in center of cover.
- Step 2: Place fingers on the back side of the wings sticking out of the sides of the cover.
- Step 3: Push with thumbs and Pull with fingers at the same time to unsnap the cover from the frame.
Removing Your PetSafe Window Pet Door
- You will first need to loosen the thumbscrews, you may first need to lift the pet door up to loosen the bottom screw.
- Then compress the window pet door and tighten the thumbscrews once again for easy removal.
Locking the Panel
- A great way to lock your sliding window is a Charley bar or dowel in the track. Both work off the same concept - they block the slider from opening. When engaged you cannot pull the sliding door away from the pet door panel.
FAQ
What do I need to know/measure before I order? First open up your window and check that it can slide open wide enough for the 11 1/8" panel to fit. Next measure the height of the track from deepest part in the bottom to the deepest part up inside the top. Last measure how wide the track is that the window slides in (needs to be at least 1") |
How wide does the track have to be for the PetSafe Sash to fit? Track width needs to be at least 1" thick. |
Is this easy to install? Yeas. You loosen the screws with a flathead screwdriver, set the top of the panel into the top track, then lift the bottom of the panel up and over into the track. Once in place you tighten the screws and that's it. |
Will this door be good for more extreme weather? The pet door has flexible flap with a magnet on the bottom to help hold is shut. The glass is single pane for moderate insulation value, that said this is recommended for more mild climates or if you a simply on a fixed budget. |
What if I mis-measured? If you've mismeasured, you may be able to fix it. To make your cat door about 3/4" taller, you may purchase a (or make your own using 1" x lumber). To make your window kitty door insert slightly shorter you may trim the side flanges on the spring loaded adjustment piece at the top with a hacksaw or a jigsaw with a metal cutting blade. |
What does custom mean? Any of the doors that are labeled as custom mean it is non-returnable. |
How much does shipping cost? Shipping is calculated at checkout. |
Warranty
Warranty Information:
Radio Systems Corporation is the industry leader in Consumer Pet Electronics; products are marketed under the PetSafe, Innotek, Invisible Fence, Guardian, Staywell, and SportDOG brands. Radio Systems Corporation and its authorized resellers (who display the appropriate sanctioned logos) only sell new products in original packaging. Product represented as used, refurbished, or “as-is”, or not in the original packaging will not be covered by our warranty, or any consumer support.
We are committed to consumer satisfaction. To that end Radio Systems Corp. cautions consumers from purchasing any product other than product in its original packaging or specially marked refurbished packaging.
Proof of Purchase must be provided to our customer care center before a warranty claim can be honored. For your convenience, you may register your product and provide proof of purchase immediately after your purchase. Thereafter, proof of purchase will not be required to fulfill a warranty claim. Products may be registered at www.petsafe.net/register-product. Proof of purchase is accepted via e-mail (receipt@petsafe.net), fax, or traditional mail. Proof of purchase is defined as the sales receipt or copy of the sales receipt.
Fax: 800-332-7942
Mail: Attn: Customer Care Center/POP Radio Systems Corporation 10427 PetSafe Way Knoxville TN 37932
One Year Non-Transferable Limited Warranty:
What is Covered
Radio Systems Corporation, owner of the PetSafe Brand, (hereinafter referred to as “PetSafe”) warrants to the original retail consumer purchaser, and not any other purchaser or subsequent owner, that its PetSafe product, when subject to normal and proper residential use, will be free from defects in material or workmanship for a period of one (1) year from the purchase date. An “original retail consumer purchaser” is a person or entity who originally purchases the product or a gift recipient of a new product that is unopened and in its original packaging. When serviced by PetSafe Customer Service, PetSafe covers labor and parts for the first year of ownership; after the first year, a service or upgrade charge will apply relative to replacement of the product, with new or refurbished items at PetSafe’s sole discretion. The limited warranty is non-transferable and shall automatically terminate if the original retail consumer purchaser resells the PetSafe product or transfers the property on which the PetSafe product is installed. In the event of defect, these are your exclusive remedies.
Proper Product Use
This product is designed only for use with domesticated animals; do not use this product for any other purpose. However, the specific temperament of your animal may not work with this product. We recommend that you do not use this product if your animal is aggressive. If you are unsure whether this product is appropriate for your animal, please consult with your veterinarian or a certified trainer before you use this product. Please see the instruction manual for additional important information.
What is Not Covered
This non-transferrable limited warranty does not provide protection against, and PetSafe will have no liability under this non-transferrable limited warranty for any damage to or defects in the products caused by any animal, loss of product(s), failure, defect or damage caused by events and situations beyond normal residential exposure conditions, including, but not limited to: commercial use, misuse, abuse, neglect, improper installation or installation not in accordance with PetSafe’s instructions, use of non-PetSafe accessories, impacts of foreign objects, acts of God, abnormal or improper use, improper storage, attempted repair or service by anyone other than PetSafe Customer Service, accident, alteration, defects in or failure of the surface the PetSafe product is installed in or upon, discoloration or other damage caused by pollution, sunlight, other environmental conditions, mold, dirt, mildew, or exposure to harmful chemicals and any other cause not involving manufacturing defects in the PetSafe product. Under no circumstances will PetSafe be liable for any non-PetSafe labor charges or any expenses whatsoever in connection with the removal, repair, or installation of either the original or replacement component(s) relative to in-ground fence installation, kennel installation, pet door installation, and other permanent, semi-permanent, or fixture type installations on the retail consumer purchaser’s property.
Registering the Product
Within thirty (30) days of purchase, please go to www.petsafe.net/register-product to register your purchase. A sales receipt shall be required to obtain warranty coverage. Please keep this information in a safe place.
Making a Warranty Claim
To obtain warranty service, call the PetSafe Customer Care center. In the United States or Canada, 1-800-732-2677; in Australia, 1800 786 608; in New Zealand, 0800 543 054.
Pursuant to this non-transferrable limited warranty, PetSafe will replace the part with a new or refurbished part. This non-transferrable limited warranty will then apply to either the new or refurbished part for the remainder of the original non-transferrable limited warranty period.
Disclaimers
Replacement as provided under this non-transferrable limited warranty is the exclusive remedy of the consumer. Neither labor to remove the part nor labor to install the refurbished or replaced part is covered.
This non-transferrable limited warranty is in lieu of all other express warranties. PetSafe expressly disclaims and excludes all other warranties, express or implied, including without limitation, the warranties of merchantability and fitness for a particular purpose. PetSafe also disclaims and excludes all liability for incidental, consequential, punitive, direct, indirect, special, or any other damages arising out of or connected with the purchase, use, or misuse of this product or for the breach of any express or implied warranties or breach of contract or otherwise. Purchaser assumes all risks and liabilities from the use or misuse of this product. PetSafe does not authorize any other person or agent to make any other express or implied warranties.
Furthermore, PetSafe will not be liable for any loss, damage, or injury resulting from delay in delivery of replacement parts or for any failure by PetSafe to perform covered repair work due to circumstances beyond PetSafe’s control.
Governing Law
This non-transferrable limited warranty shall be governed by the law of the State of Tennessee, U.S.A., and by the laws of the United States of America, excluding their conflicts of laws principles. Furthermore, the United Nations Convention on Contracts for the International Sale of Goods is hereby excluded in its entirety from application to this non-transferrable limited warranty. Jurisdiction and venue shall be exclusive to the courts of Knox County, Tennessee. These warranties give you specific legal rights, and you may also have other rights that vary from state to state or country to country. Some states or countries do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.
Making a Warranty Claim:
If you need assistance or to make a warranty claim, please contact our Customer Care Center for help in troubleshooting and, if necessary, to arrange a warranty repair for your product.
Customer Reviews

Size Chart
- PetSafe Horizontal Window Pet Door5 1/8"w x 8 1/4”h
Flap Dimensions:
5 1/8"w x 8 1/4”h
The entry way your dog goes through.

Overall Panel Width
11 1/8"
How wide the panel is overall.Flap Size | Flap Dimension | Overall Panel Width | Recommended Pet height |
---|---|---|---|
Small | 5 1/8" x 8 1/4" | 11 1/8" | 6" - 11" |
Adjustment Ranges:
- 34" - 37"
- 46" - 49"
Pet door has 1" framing, measure your track width to make sure that your window will accommodate the panel.
Wondering how to measure your track? Review our Track Measuring Guide demonstrated on a sliding glass door.
Still do not know which flap size to get? Here is a measurement guide to help you out
Find The Best Pet Door Size For My Pet

A
Pet Height: inches
B
Pet Width: inches
Installation Instructions
Parts
- Panel Pet Door
- Closing Cover
Tools
- Flathead Screwdriver
Please read instructions & notes thoroughly before installation.
Step 1 Release Spring Mechanism

- Release the automatic height adjustment locks by loosening the screws with a screwdriver.
Step 2 Insert the Panel Into the Track

- Insert the cat door panel with the knobs facing inside. Place the top edge into the top track of the window. Lift up and swing the lower portion of the panel into the bottom track.
Step 3 Adjust the Panel

- Slide the pet door panel against the window jamb. Make sure that the top is fully extended (not tilted to one side) and the bottom of the panel is on the ridge (pencil rail) in the bottom track.
- Tighten the height adjustment locks with a screwdriver.
PetSafe Window Panel Tips
Removing the Press-Fit Closing Cover
- Step 1: Place thumbs in center of cover.
- Step 2: Place fingers on the back side of the wings sticking out of the sides of the cover.
- Step 3: Push with thumbs and Pull with fingers at the same time to unsnap the cover from the frame.
Removing Your PetSafe Window Pet Door
- You will first need to loosen the thumbscrews, you may first need to lift the pet door up to loosen the bottom screw.
- Then compress the window pet door and tighten the thumbscrews once again for easy removal.
Locking the Panel
- A great way to lock your sliding window is a Charley bar or dowel in the track. Both work off the same concept - they block the slider from opening. When engaged you cannot pull the sliding door away from the pet door panel.
FAQ
What do I need to know/measure before I order? First open up your window and check that it can slide open wide enough for the 11 1/8" panel to fit. Next measure the height of the track from deepest part in the bottom to the deepest part up inside the top. Last measure how wide the track is that the window slides in (needs to be at least 1") |
How wide does the track have to be for the PetSafe Sash to fit? Track width needs to be at least 1" thick. |
Is this easy to install? Yeas. You loosen the screws with a flathead screwdriver, set the top of the panel into the top track, then lift the bottom of the panel up and over into the track. Once in place you tighten the screws and that's it. |
Will this door be good for more extreme weather? The pet door has flexible flap with a magnet on the bottom to help hold is shut. The glass is single pane for moderate insulation value, that said this is recommended for more mild climates or if you a simply on a fixed budget. |
What if I mis-measured? If you've mismeasured, you may be able to fix it. To make your cat door about 3/4" taller, you may purchase a (or make your own using 1" x lumber). To make your window kitty door insert slightly shorter you may trim the side flanges on the spring loaded adjustment piece at the top with a hacksaw or a jigsaw with a metal cutting blade. |
What does custom mean? Any of the doors that are labeled as custom mean it is non-returnable. |
How much does shipping cost? Shipping is calculated at checkout. |
Warranty
Warranty Information:
Radio Systems Corporation is the industry leader in Consumer Pet Electronics; products are marketed under the PetSafe, Innotek, Invisible Fence, Guardian, Staywell, and SportDOG brands. Radio Systems Corporation and its authorized resellers (who display the appropriate sanctioned logos) only sell new products in original packaging. Product represented as used, refurbished, or “as-is”, or not in the original packaging will not be covered by our warranty, or any consumer support.
We are committed to consumer satisfaction. To that end Radio Systems Corp. cautions consumers from purchasing any product other than product in its original packaging or specially marked refurbished packaging.
Proof of Purchase must be provided to our customer care center before a warranty claim can be honored. For your convenience, you may register your product and provide proof of purchase immediately after your purchase. Thereafter, proof of purchase will not be required to fulfill a warranty claim. Products may be registered at www.petsafe.net/register-product. Proof of purchase is accepted via e-mail (receipt@petsafe.net), fax, or traditional mail. Proof of purchase is defined as the sales receipt or copy of the sales receipt.
Fax: 800-332-7942
Mail: Attn: Customer Care Center/POP Radio Systems Corporation 10427 PetSafe Way Knoxville TN 37932
One Year Non-Transferable Limited Warranty:
What is Covered
Radio Systems Corporation, owner of the PetSafe Brand, (hereinafter referred to as “PetSafe”) warrants to the original retail consumer purchaser, and not any other purchaser or subsequent owner, that its PetSafe product, when subject to normal and proper residential use, will be free from defects in material or workmanship for a period of one (1) year from the purchase date. An “original retail consumer purchaser” is a person or entity who originally purchases the product or a gift recipient of a new product that is unopened and in its original packaging. When serviced by PetSafe Customer Service, PetSafe covers labor and parts for the first year of ownership; after the first year, a service or upgrade charge will apply relative to replacement of the product, with new or refurbished items at PetSafe’s sole discretion. The limited warranty is non-transferable and shall automatically terminate if the original retail consumer purchaser resells the PetSafe product or transfers the property on which the PetSafe product is installed. In the event of defect, these are your exclusive remedies.
Proper Product Use
This product is designed only for use with domesticated animals; do not use this product for any other purpose. However, the specific temperament of your animal may not work with this product. We recommend that you do not use this product if your animal is aggressive. If you are unsure whether this product is appropriate for your animal, please consult with your veterinarian or a certified trainer before you use this product. Please see the instruction manual for additional important information.
What is Not Covered
This non-transferrable limited warranty does not provide protection against, and PetSafe will have no liability under this non-transferrable limited warranty for any damage to or defects in the products caused by any animal, loss of product(s), failure, defect or damage caused by events and situations beyond normal residential exposure conditions, including, but not limited to: commercial use, misuse, abuse, neglect, improper installation or installation not in accordance with PetSafe’s instructions, use of non-PetSafe accessories, impacts of foreign objects, acts of God, abnormal or improper use, improper storage, attempted repair or service by anyone other than PetSafe Customer Service, accident, alteration, defects in or failure of the surface the PetSafe product is installed in or upon, discoloration or other damage caused by pollution, sunlight, other environmental conditions, mold, dirt, mildew, or exposure to harmful chemicals and any other cause not involving manufacturing defects in the PetSafe product. Under no circumstances will PetSafe be liable for any non-PetSafe labor charges or any expenses whatsoever in connection with the removal, repair, or installation of either the original or replacement component(s) relative to in-ground fence installation, kennel installation, pet door installation, and other permanent, semi-permanent, or fixture type installations on the retail consumer purchaser’s property.
Registering the Product
Within thirty (30) days of purchase, please go to www.petsafe.net/register-product to register your purchase. A sales receipt shall be required to obtain warranty coverage. Please keep this information in a safe place.
Making a Warranty Claim
To obtain warranty service, call the PetSafe Customer Care center. In the United States or Canada, 1-800-732-2677; in Australia, 1800 786 608; in New Zealand, 0800 543 054.
Pursuant to this non-transferrable limited warranty, PetSafe will replace the part with a new or refurbished part. This non-transferrable limited warranty will then apply to either the new or refurbished part for the remainder of the original non-transferrable limited warranty period.
Disclaimers
Replacement as provided under this non-transferrable limited warranty is the exclusive remedy of the consumer. Neither labor to remove the part nor labor to install the refurbished or replaced part is covered.
This non-transferrable limited warranty is in lieu of all other express warranties. PetSafe expressly disclaims and excludes all other warranties, express or implied, including without limitation, the warranties of merchantability and fitness for a particular purpose. PetSafe also disclaims and excludes all liability for incidental, consequential, punitive, direct, indirect, special, or any other damages arising out of or connected with the purchase, use, or misuse of this product or for the breach of any express or implied warranties or breach of contract or otherwise. Purchaser assumes all risks and liabilities from the use or misuse of this product. PetSafe does not authorize any other person or agent to make any other express or implied warranties.
Furthermore, PetSafe will not be liable for any loss, damage, or injury resulting from delay in delivery of replacement parts or for any failure by PetSafe to perform covered repair work due to circumstances beyond PetSafe’s control.
Governing Law
This non-transferrable limited warranty shall be governed by the law of the State of Tennessee, U.S.A., and by the laws of the United States of America, excluding their conflicts of laws principles. Furthermore, the United Nations Convention on Contracts for the International Sale of Goods is hereby excluded in its entirety from application to this non-transferrable limited warranty. Jurisdiction and venue shall be exclusive to the courts of Knox County, Tennessee. These warranties give you specific legal rights, and you may also have other rights that vary from state to state or country to country. Some states or countries do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.
Making a Warranty Claim:
If you need assistance or to make a warranty claim, please contact our Customer Care Center for help in troubleshooting and, if necessary, to arrange a warranty repair for your product.