Find The Best Pet Door Size For My Pet

Where To Install:

Door

Wall

Measure the height of your pet from the tallest point of your pet's back to the ground: inches

Measure the width of your pet from the widest part from shoulders to shoulder: inches

My pet has limited mobility. A pet who has trouble walking needs a taller pet door so that it will be easier for them to climb through.

Liberty Pet Door for White Horizontal Sliding Windows

Name: Liberty Pet Door for White Horizontal Sliding Windows
Brand: Liberty Pet Door
SKU: 09LP-A0512-1W-3SE-33.5-35.0
Price: 279.99 USD
Availability: InStock

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Size & Measurement Guide x

Flap Size Flap Dimension Aluminum Step Over Range Vinyl Step Over Overall Panel Width Recommended Pet Height
Small 5" w x 12" h 3" - 5" 3" 10-3/16" 9" - 16"
Medium 7" w x 16" h 3" - 5" 3" 12-1/4" 9" - 22"
Large 9" w x 20" h 3" - 7" (ships at 5") 6.75" 14-1/4" 9" - 28"

Aluminum panel has 1" framing, measure your track width to make sure that your window will accommodate the panel. Vinyl panels have a 1-1/4" framing.

Track Height Adjustment Range is the measurement of your window height from the lowest point of your track to the highest point. Review our Track Measuring Guide for more 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. If your measured track height is near the bottom of the adjustment range then you should review A Note of Caution.

Track Measurement Guide x

In order to choose the correct panel size, you will need to measure your sliding glass door track.

Please Note: These instructions are for channel-style sliding door tracks. If you have a monorail track, these instructions do not apply.

Step 1Find the Lowest Corner of Your Track

With your sliding door open, insert one end of your measuring tape at the deepest point of the lower corner of your sliding glass door track.

Make sure the tape measure is flush to the corner. There may be a part of your door track blocking the lowest point of the corner.

Step 2Find the Highest Corner of Your Track

Line the measuring tape up the side of your doorway, stopping at the highest corner. Make sure the measuring tape is flush with the corner and is not blocked.

The distance from the lowest corner of your track to the highest corner of your track is your sliding glass door track height.

Select the Height Adjustment Range that includes your track height. Some brands have custom options if your track height does not fall into one of the ranges.

Step 3Measure Your Track Width

Using your tape measure, find the width of the bottom track your sliding glass door slides along.

Most aluminum panels require a track at least 1" wide and most vinyl panels require a track at least 1.5" wide.

Check the product details to ensure the panel will fit in your track.

How to Measure Your Track x

Step 1Locate the Lowest Corner of Your Track

With your sliding door open, insert one end of your measuring tape at the deepest point of the lower corner of your door track.

Make sure the measuring tape is flush with the lowest point of the corner and is not blocked.

Step 2Measure to the Highest Corner of Your Track

Line the measuring tape up the side of your door, stopping at the highest corner. Make sure the measuring tape is flush with the corner and is not blocked.

The distance from the lowest corner of your track to the highest corner of your track is your door track height.

Select the Custom Height Adjustment Range required for your door track height.

Step 3Measure Your Track Width

Using your measuring tape, find the width of the bottom track that your window slides along.

Make sure to check the product details to ensure the panel will fit in your track.

Product Details

Sizing & Fit

Installation Guide

FAQs

Reviews

Liberty Pet Door for White Horizontal Sliding Windows

Small / Aluminum / 33.5" - 35" Edit

Product Details

The Liberty Pet Door for White Horizontal Sliding Windows blends functionality, aesthetics, and energy efficiency into a modern pet access solution. This innovative pet door prioritizes both your pet's freedom and your home's comfort.

Made for a perfect fit, the Liberty Pet Door adjusts to horizontal sliding windows with tracks ranging from 34 to 60 inches tall. Choose between a heavy-duty aluminum frame for durability or a sleek vinyl frame for a modern touch. Both options come in a versatile white finish to complement any décor. A black frame horizontal sliding window panel is also available. Custom sizing is available to ensure a perfect fit for any window, making it ideal for various home styles.

The Liberty Pet Door prioritizes both pet comfort and energy savings. Clear safety glass and weather-resistant flaps minimize heat transfer, keeping your home comfortable year-round and reducing energy bills. The clear vinyl flap with magnetic closure further enhances weatherproofing while providing a transparent view for your pet, easing their transition to using the door.

For added convenience, the spring-loaded system allows for quick and secure installation without permanent alterations – ideal for renters or those who prefer flexibility. Security is not compromised, as a sturdy locking cover provides control over pet access when needed.

Manufactured in the USA, the Liberty Pet Door represents a commitment to quality and design. This durable and secure pet door is the perfect solution for discerning homeowners seeking a seamless blend of functionality, style, and pet-friendly living.

Features:

Versatile and Adaptable: Offers a seamless integration into your home's existing sliding windows, without the need for costly renovations.
Clear View for Pets: The clear vinyl flap provides pets with visibility, reducing anxiety and making it easier for them to use.
Maintained Indoor Comfort: Utilizes energy-efficient materials to keep your home's temperature regulated, saving on energy costs.
Non-Invasive Security: Includes a locking cover to secure the entryway when not in use, without compromising the ease of access for your pet.
Proudly Made in the USA: Ensures high-quality construction and durability, backed by a promise of reliability for you and your pet

Size Chart

Flap Size	Flap Dimension	Aluminum Step Over Range	Vinyl Step Over	Overall Panel Width	Recommended Pet Height
Small	5" w x 12" h	3" - 5"	3"	10-3/16"	9" - 16"
Medium	7" w x 16" h	3" - 5"	3"	12-1/4"	9" - 22"
Large	9" w x 20" h	3" - 7" (ships at 5")	6.75"	14-1/4"	9" - 28"

Aluminum panel has 1" framing, measure your track width to make sure that your window will accommodate the panel. Vinyl panels have a 1-1/4" framing.

Track Height Adjustment Range is the measurement of your window height from the lowest point of your track to the highest point. Review our Track Measuring Guide for more 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. If your measured track height is near the bottom of the adjustment range then you should review A Note of Caution.

Find The Best Pet Door Size For My Pet

Pet Height: inches

Measure the height of your pet from the tallest point of your pet's back to the ground.

Pet Width: inches

Measure the width of your pet from the widest part from shoulders to shoulder.

My pet has limited mobility. A pet who has trouble walking needs a taller pet door so that it will be easier for them to climb through.

Installation Instructions

Difficulty Easy

Steps 04

Time Required 0.5 hours

Sections 02

Flags 02

Parts

1 Horizontal Window Pet Door
1 Foam Weather Strip
1 Center Post Weather Seal Draft Stopper
1 Clamp Lock
Screwdriver

Tools

Scissors
Flathead Screwdriver

Please read instructions & notes thoroughly before installation.

Step 1 Release Spring Mechanism

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 Check Panel Fit

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.
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 FAQs if you have trouble.

Step 3 Apply Weather-stripping

Once you’re sure the panel fits, remove it from the frame and lay it on its side on the ground.
Apply the foam weather-stripping by peeling back the paper and exposing the adhesive. Unroll it along the edge of the panel, pressing to ensure it adheres. Install on both sides, trim to fit with scissors.

Step 4 Install Center Post Weather Seal

The center post weather seal strip (draft stopper) should be installed on the inside of the home. It can be installed on either the back edge of the sliding window panel (Figure A) or the leading edge of the stationary panel (Figure B).
This strip prevents air from leaking between the sliding window and the stationary panel. Trim with scissors as needed.
Clean the edge of your window with rubbing alcohol before installing to assure a good seal.
Place the panel back into the window, then tighten the height adjustment locks to lock it in place. Installation complete!

LOCK DETAILS

Since you likely can no longer use your window’s original lock, we have provided you with an alternative locking method to keep your home secure.

Installing the window clamp: This clamp has a screw that tightens by hand to prevent the sliding door from moving beyond the clamp’s placement. For doors manufactured with the glass slider on the inside track, the lock can usually be installed on the door’s raised track.

window clamp on horizontal sliding windows

If you aren’t able to use the lock that comes with the panel: A great alternative to locking your sliding glass door 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 do if I have a window that opens up and down?

For windows that open up and down (sash windows), check out the Liberty Pet Door for White Sash Windows.

Warranty

Liberty Pet Doors have a three-year warranty for normal wear & tear and manufacturing defects.

Find The Best Pet Door Size For My Pet

Liberty Pet Door for White Horizontal Sliding Windows

Liberty Pet Door for White Horizontal Sliding Windows