• Adjustable for horizontal sliding windows with track heights ranging from 32" to 62-1/2", available in standard and custom sizes to ensure a perfect fit.
  • Clear safety glass and weather-resistant flaps are energy efficient and maintain indoor comfort in moderate weather.
  • Spring-loaded design allows for quick, secure installation without permanent alterations, making it ideal for renters, vacation homes, and more.
  • Features a heavy-duty black aluminum frame is built to withstand extreme weather and pet use. A white frame version is available too.
  • Comes with a sturdy locking cover to keep your home secure while providing pet freedom.

Liberty Pet Door for Black Horizontal Sliding Windows

Sleek Black Frame Tool Free Sliding Access

Regular price $419.99

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Size
Adjustment Range


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Crafted with a sleek black aluminum frame that complements modern dark windows, this tool-free spring-loaded panel combines insulating safety glass with an adjustable magnetic flap to grant your pet effortless access without permanent modifications.

  • Adjustable for horizontal sliding windows with track heights ranging from 32" to 62-1/2", available in standard and custom sizes to ensure a perfect fit.
  • Clear safety glass and weather-resistant flaps are energy efficient and maintain indoor comfort in moderate weather.
  • Spring-loaded design allows for quick, secure installation without permanent alterations, making it ideal for renters, vacation homes, and more.
  • Features a heavy-duty black aluminum frame is built to withstand extreme weather and pet use. A white frame version is available too.
  • Comes with a sturdy locking cover to keep your home secure while providing pet freedom.

Installation & Fit

  • Fits standard horizontal sliding window track heights measuring 32" to 62-1/2" tall with up to 3-1/2" of spring-loaded height adjustment for a draft-free seal.
  • Requires aluminum horizontal sliding window tracks measuring at least 1" wide.
  • Constructed with heavy-duty extruded aluminum framing in a black finish and single-pane safety glass.
  • Includes a slide-in locking cover to secure the opening and regulate pet access.
  • Tool-free DIY setup slides directly into existing window tracks in under 5 minutes with zero drilling or permanent modifications.

Best Suited For

Ideal for:

  • Black or dark-finished horizontal sliding window openings measuring 34" to 60" tall with built-in spring adjustment.
  • Renters and homeowners seeking a fast, tool-free installation that slides into place with zero drilling or permanent modifications.
  • Everyday, year-round weather protection using single-pane safety glass and an adjustable magnetic closure.
  • Small pets to large dogs who benefit from a lightweight, flexible flap with gentle magnetic tension.
  • Aluminum window tracks measuring at least 1" wide.

Not ideal for:

Questions

What prevents cold air from entering through the pet door?

The door is designed with robust magnetic closures and weatherstripping to prevent drafts, creating an efficient barrier against cold air.

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.

Does it lock?

We do include a c-clamp lock. It is not designed to mate with your existing sliding door lock. You can also use a Charley-Bar or dowel in the track.

Explore all questions
Product Details

Product Details


The Liberty Pet Door for Black Horizontal Sliding Windows provides a sleek, weather-tight pet entrance designed specifically for horizontal sliding window tracks. Built with single-pane safety glass and a heavy-duty aluminum frame, it gives your pet freedom to come and go while maintaining home energy efficiency and security.

Sleek Black Aluminum Frame
Crafted with a heavy-duty extruded aluminum frame in a black finish, this insert seamlessly complements modern dark window frames while resisting extreme weather and wear. Fits horizontal sliding window tracks at least 1" wide.

Adjustable Window Fit
Designed for horizontal sliding window track heights from 32" to 62-1/2", this panel features up to 3-1/2" of built-in spring-loaded height adjustment to ensure a snug, draft-free seal without requiring permanent alterations.

Energy-Efficient Safety Glass
Outfitted with durable single-pane safety glass, the insert preserves natural sunlight and clear outdoor visibility while insulating your home against seasonal temperature changes.

All-Weather Magnetic Flap
The clear vinyl pet flap stays flexible in extreme conditions from 0°F to 120°F. Magnetic closure strips and weatherstripping provide a wind-resistant seal, with adjustable magnet strength to suit your pet's needs.

Integrated Security Cover
Includes a sturdy locking cover that slides securely over the flap opening, allowing you to manage pet access easily and keep your home safe when pets are indoors.

Size icon Sizing & Fit

Size Chart

Flap Dimensions:

5"w x 12"h

The entry way your dog goes through.

Overall Panel Width

10 3/16"

How wide your panel is.

Flap dimensions
Panel width
Step over height

Step-Over Height

3" - 5"

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 1/4"

How wide your panel is.

Flap dimensions
Panel width
Step over height

Step-Over Height

3" - 5"

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 1/4"

How wide your panel is.

Flap dimensions
Panel width
Step over height

Step-Over Height

3" - 7"

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" - 5" 10 3/16" 9" - 16"
Medium 7"w x 16"h 3" - 5" 12 1/4" 9" - 22"
Large 9"w x 20"h 3" - 7" 14 1/4" 9" - 28"

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

Aluminum panel has 1" framing, measure your track width to make sure that your window will accommodate the panel.

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

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.