• Designed for vinyl sliding glass doors, integrating seamlessly into tracks at least 1-1/2" wide for a secure fit
  • Adjustable height ranges accommodate sliding door sizes, with multiple flap sizes available to suit small and large pets
  • Energy-efficient insulated clear 3/16" safety glass maintains indoor comfort while reducing drafts and heat transfer
  • Clear vinyl flap with a magnetic closure and weather-resistant pile lining provides durability in wind and rain
  • Spring-loaded installation allows for easy setup and removal without permanent modifications, making it ideal for rentals and temporary homes
  • Locking cover and optional C-Clamp Lock provide additional security, preventing unwanted access when needed
  • Proudly made in the USA with a durable vinyl frame built to withstand weather conditions and frequent pet use

Liberty Pet Door Vinyl Patio Panel

Easy Fit for Vinyl Sliders

9 Reviews
Made in the USA USA flag icon
Regular price $579.99

Fast & Free Shipping in the USA.

Satisfaction Guarantee -

1 Year Warranty

Size
Color: White
Height Adjustment Range


Cleanly adds pet access to vinyl sliding glass doors with an adjustable, no-cut installation, insulated glass, and a secure, removable panel design.

The Liberty Vinyl Sliding Glass Pet Door is built for simplicity without sacrificing quality. It gives your pet freedom to come and go while keeping your home intact, making it a strong choice for renters or anyone who prefers not to modify their door.

The spring-loaded installation system is what makes this panel stand out for ease of use. It compresses into your existing sliding door track, creating a secure fit without screws, drilling, or permanent changes. That also means it can be removed just as easily if your living situation changes.

The insulated glass panel helps maintain a more stable indoor temperature compared to basic single-material inserts. Combined with a magnetic-sealing flap and weather-resistant lining, it provides a comfortable balance of airflow control and accessibility for your pet.

Durability is built into the vinyl frame, which holds up well to daily use and changing weather conditions. The flap is designed to stay flexible while still closing securely, helping reduce unwanted drafts without making it difficult for your pet to use.

For added peace of mind, the included locking cover allows you to block access when needed. This is especially useful at night, during travel, or anytime you want full control over entry and exit.

If your priority is quick installation, clean removal, and reliable everyday performance in a vinyl sliding door, this panel delivers a practical and well-balanced solution.

Installation & Fit

  • Fits vinyl sliding glass door tracks that are at least 1 1/2 inches wide
  • Installs using a spring-loaded top section that compresses into the track for a pressure-fit hold
  • Secures in place without permanent fastening, allowing removal without damage to the door frame
  • Locks into position using the included panel lock or optional security accessories
  • Requires no cutting of glass or door modification for standard installations
  • Ships as a complete panel unit that is placed directly into the existing sliding door track
  • Non-standard door frames or unusually tight tracks may require minor adjustment or alternative panel configurations.

Best Suited For

Ideal for:

  • Homes with vinyl sliding glass doors where drilling or permanent changes are not preferred
  • Renters and home owners where removability is important
  • Pet owners who want a simple installation without tools or structural modification
  • Moderate climates where insulated glass and weather sealing provide sufficient protection
  • Households that value quick setup with a clean, integrated look
  • Pet owners needing a range of flap sizes for small to large dogs

Not ideal for:

Questions

What's in the box?

  • Vinyl Panel Pet Door
  • Weatherstrip Seal Roll
  • Center Post Weather Seal Draft Stopper
  • Sliding Door C-Clamp Lock

Can an intruder remove a dog door for sliding glass doors from the outside?

No, the adjustment locks are on the inside of the panel, so once installed, the Endura Flap Panel cannot be lifted out and removed without first loosening the adjustment locks from inside the home.

Can I install it myself?

It is meant to easily be put in and removed. You just have to loosen the screws at the top, fit it into the track, and then tighten them. Then to remove it you simply loosen them again and pop it out.

Can you lock the pet door?

It comes with a closing cover, and you slide that in on the inside of the house. It is a very secure ABS plastic material that is as strong as a 16 gauge steel.

Explore all questions
Product Details

Product Details

The Liberty Vinyl Sliding Glass Pet Door is built for simplicity without sacrificing quality. It gives your pet freedom to come and go while keeping your home intact, making it a strong choice for renters or anyone who prefers not to modify their door.

The spring-loaded installation system is what makes this panel stand out for ease of use. It compresses into your existing sliding door track, creating a secure fit without screws, drilling, or permanent changes. That also means it can be removed just as easily if your living situation changes.

The insulated glass panel helps maintain a more stable indoor temperature compared to basic single-material inserts. Combined with a magnetic-sealing flap and weather-resistant lining, it provides a comfortable balance of airflow control and accessibility for your pet.

Durability is built into the vinyl frame, which holds up well to daily use and changing weather conditions. The flap is designed to stay flexible while still closing securely, helping reduce unwanted drafts without making it difficult for your pet to use.

For added peace of mind, the included locking cover allows you to block access when needed. This is especially useful at night, during travel, or anytime you want full control over entry and exit.

If your priority is quick installation, clean removal, and reliable everyday performance in a vinyl sliding door, this panel delivers a practical and well-balanced solution.

Sizing & Fit

Size Chart

Do not know which size to get? Here is a measurement guide to help you out

Size icon Sizing & Fit

Size Chart

Flap Dimensions:

5"w x 12"h

The entry way your dog goes through.

Overall Panel Width

10 7/16"

How wide your panel is.

Flap dimensions
Panel width
Step over height

Step-Over Height

3 1/4"

The distance from the bottom of the panel to the bottom of your flap.

Flap Dimensions:

7"w x 16"h

The entry way your dog goes through.

Overall Panel Width

12 1/2"

How wide your panel is.

Flap dimensions
Panel width
Step over height

Step-Over Height

4 3/4"

The distance from the bottom of the panel to the bottom of your flap.

Flap Dimensions:

9"w x 20"h

The entry way your dog goes through.

Overall Panel Width

14 1/2"

How wide your panel is.

Flap dimensions
Panel width
Step over height

Step-Over Height

6 1/4"

The distance from the bottom of the panel to the bottom of your flap.

Flap Dimensions:

11"w x 24"h

The entry way your dog goes through.

Overall Panel Width

16 5/8"

How wide your panel is.

Flap dimensions
Panel width
Step over height

Step-Over Height

6 1/4"

The distance from the bottom of the panel to the bottom of your flap.

Flap Dimensions:

13"w x 28"h

The entry way your dog goes through.

Overall Panel Width

18 5/8"

How wide your panel is.

Flap dimensions
Panel width
Step over height

Step-Over Height

7 3/4"

The distance from the bottom of the panel to the bottom of your flap.

Flap Size Flap Dimension Step Over Range Outside Frame Dimension Recommended Pet Height
Small 5"w x 12"h 3 1/4" 10 7/16" 9" - 16"
Medium 7"w x 16"h 4 3/4" 12 1/2" 9" - 22"
Large 9"w x 20"h 6 1/4" 14 1/2" 9" - 33"
Extra Large 11"w x 24"h 6 1/4" 16 5/8" 9" - 39"
XXL 13"w x 28"h 7 3/4" 18 5/8" 9" - 44"

Do not know which size to get? Here is a measurement guide to help you out.

Track Height Adjustment range
is based on the measurement of your sliding door track height from the
lowest point of your track to the highest point. Each Liberty Pet Door
Panel has a 3" adjustment range. Review our Track Measuring Guide video for additional, detailed information.

If your measured track height does not fall within one of the ranges above, we can make a custom height! Custom height option may take up to 4 weeks to special order the glass and build the panel.

Installation Guide

Installation Information

One-Piece Panel

Installation icon Difficulty Easy
Installation icon Steps 5
Installation icon Time Required 0.5 hours

Parts

  • Vinyl Panel Pet Door
  • Weatherstrip Seal Roll
  • Center Post Weather Seal Draft Stopper
  • Sliding Door C-Clamp Lock

Tools

  • Flathead Screwdriver

Please read instructions & notes thoroughly before installation.

Step 1 Loosen Height Adjustment Locks

Loosen Height Adjustment Locks
  • Loosen the height adjustment locks at the top of the pet panel with the screwdriver. This allows the spring mechanism to move freely up and down.

Step 2 Test Fit the Panel in Your Track

Test Fit the Panel in Your Track
  • You want to put the pet door in your track before applying any weather stripping to ensure it fits. If the panel fits well, proceed to the next step. See the Troubleshooting Section if you encounter difficulties.
  • To insert the panel into the top track, push up against the spring mechanism and swing the bottom of the panel up and over the threshold.
  • Seat the panel on top of the small guide rail in the track.
  • If you can't quite get it in the track, try swinging in from the outside as the outside track wall may be shorter.

Step 3 Apply Weatherstripping

Apply Weatherstripping
Apply Weatherstripping
Apply Weatherstripping
  • Once you're sure the panel fits, remove it from the frame and lay it on its side on the ground.
  • For foam weatherstripping: Peel the backing off the foam weatherstripping. Press it along both edges of the panel, trimming as needed with scissors to ensure a snug fit.
  • For rubber weatherstripping: Clean the edge of your sliding door or window with rubbing alcohol to help the weatherstripping stick properly. Starting at the top or bottom, peel and press the strip into place with the folded edge facing indoors—align angled cuts if you have two pieces. For best results, apply the seal to the sliding door or window, but it can go on the pet door panel if needed.
  • Foam weatherstripping is applied onto both sides of the panel, but the rubber weather stripping only applies on the side of the slider door. Your panel will come with one type of weather stripping. You do not need both types.

Step 4 Install the Draft Stopper

Install the Draft Stopper
Install the Draft Stopper
Install the Draft Stopper
  • The center post weather seal strip (draft stopper) should be installed on the inside of the home.
  • It can install on either the back edge of the sliding door panel or the leading edge of the stationary panel.
  • This strip prevents air from leaking between the sliding glass door and the stationary panel.
  • Trim with scissors as needed. Clean the edge of your patio door with rubbing alcohol before installing to assure a good seal.
  • Repeat step two to install the panel in your track.

Step 5 Install the Panel

Install the Panel
  • If you haven't already, insert the panel back into your sliding door track the same way you did earlier: pushing up against the spring mechanism and swinging the bottom into place. Push it snug into the side track!
  • Make sure everything is sitting securely.
  • Tighten the height adustment locks in the spring mechanism.
  • And that's it! Your pet door is installed and ready for use. Now, watch your pet strut through their new door like they own the place!

Two-Piece Panel

Installation icon Difficulty Easy
Installation icon Steps 7
Installation icon Time Required 0.5 hours

Parts

  • Vinyl Panel Pet Door
  • Weatherstrip Seal Roll
  • Center Post Weather Seal Draft Stopper
  • Sliding Door C-Clamp Lock

Tools

  • Flathead Screwdriver

Please read instructions & notes thoroughly before installation.

Step 1 Align the Connectors

Align the Connectors
  • Align the aluminum connectors extending from the bottom flap panel section with the top glass panel section. Remove the 4 sectional connectors screws before joining the sections.
  • Press the aluminum connectors into the holes at the bottom of the top glass panel section.
  • Ensure locking cover & height adjustment locks are on the same side!

Step 2 Assemble the Panel

Assemble the Panel
Assemble the Panel
Assemble the Panel
  • To fully seat the connectors, gently tap the bottom edge of the panel against the ground
  • Tip: Place a towel or soft surface underneath to protect your floor, and the panel!
  • Fasten the two panels together using the four sectional connector screws.

Step 3 Loosen Height Adjustment Locks

Loosen Height Adjustment Locks
  • Loosen the height adjustment locks at the top of the pet panel with the screwdriver. This allows the spring mechanism to move freely up and down.

Step 4 Test Fit the Panel in Your Track

Test Fit the Panel in Your Track
  • You want to put the pet door in your track before applying any weather stripping to ensure it fits. If the panel fits well, proceed to the next step. See the Troubleshooting Section if you encounter difficulties.
  • To insert the panel into the top track, push up against the spring mechanism and swing the bottom of the panel up and over the threshold.
  • Seat the panel on top of the small guide rail in the track.
  • If you can't quite get it in the track, try swinging in from the outside as the outside track wall may be shorter.

Step 5 Apply Weatherstripping

Apply Weatherstripping
Apply Weatherstripping
Apply Weatherstripping
  • Once you're sure the panel fits, remove it from the frame and lay it on its side on the ground.
  • For foam weatherstripping: Peel the backing off the foam weatherstripping. Press it along both edges of the panel, trimming as needed with scissors to ensure a snug fit.
  • For rubber weatherstripping: Clean the edge of your sliding door or window with rubbing alcohol to help the weatherstripping stick properly. Starting at the top or bottom, peel and press the strip into place with the folded edge facing indoors—align angled cuts if you have two pieces. For best results, apply the seal to the sliding door or window, but it can go on the pet door panel if needed.
  • Foam weatherstripping is applied onto both sides of the panel, but the rubber weather stripping only applies on the side of the slider door. Your panel will come with one type of weather stripping. You do not need both types.

Step 6 Install the Draft Stopper

Install the Draft Stopper
Install the Draft Stopper
Install the Draft Stopper
  • The center post weather seal strip (draft stopper) should be installed on the inside of the home.
  • It can install on either the back edge of the sliding door panel or the leading edge of the stationary panel.
  • This strip prevents air from leaking between the sliding glass door and the stationary panel.
  • Trim with scissors as needed. Clean the edge of your patio door with rubbing alcohol before installing to assure a good seal.
  • Repeat step two to install the panel in your track.

Step 7 Install the Panel

Install the Panel
  • If you haven't already, insert the panel back into your sliding door track the same way you did earlier: pushing up against the spring mechanism and swinging the bottom into place. Push it snug into the side track!
  • Make sure everything is sitting securely.
  • Tighten the height adustment locks in the spring mechanism.
  • And that's it! Your pet door is installed and ready for use. Now, watch your pet strut through their new door like they own the place!
FAQs

FAQ

Reviews

Customer Reviews

Request Freight Quote

Track heights exceeding 106 inches (107" or higher) may require additional shipping charges. Please provide your contact information for a custom freight quote, and our team will follow up during normal business hours.