Liberty Pet Door for White Sash Windows
- Fits sash windows 22" to 44" wide. Aluminum frame needs a track at least 1" wide; vinyl frame needs a track at least 1-1/4" wide.
- Clear safety glass for insulation that holds up across all four seasons.
- Semi-permanent spring-loaded install. No cutting, no drilling. Works for renters and homeowners.
- Includes a locking cover. Heavy extruded aluminum or vinyl frame in white.
- Standard sizes plus custom panel widths for windows outside the standard range.
Product Details
Sizing & Fit
Installation Guide
ReviewsProduct Details
The Liberty Pet Door for Sash Windows installs into a sash window without modifying the window or the frame. It fits windows 22" to 44" wide and is held in place by a spring-loaded panel that compresses between the sill and the upper sash.
The frame comes in two materials: heavy extruded aluminum or vinyl. Both are white. Pick aluminum if your window track is at least 1" wide; pick vinyl if your track is at least 1-1/4" wide.
The pet door panel has clear safety glass above the flap, so the window keeps insulating the way it did before. Aluminum panels need a track at least 1" wide; vinyl panels need 1-1/4". If you are not sure which adjustment range to pick, choose the shorter of the two and use the spring to take up the rest.
Install is straightforward. The spring-loaded design holds the panel in place without screws or permanent changes, which is why this product is a common choice for rentals and vacation homes. The clear vinyl flap with magnetic sealing and weatherstripping lets pets see out while keeping the seal tight. The flap is also available in smaller sizes for very small dogs and cats.
Every panel ships with a molded ABS locking cover that drops in from the top to block the opening when you want the door secured.
Made in the USA. The white finish matches most existing window frames and holds up to weather and active pets.
Features:
- Adjustable height: 3" spring-loaded range. Picks up slack between the standard ranges. Unsure what adjustment range to get? Pick the shorter of the two.
- Clear vinyl flap: Magnetic seal stays tight in wind. Stays flexible in cold weather.
- Easy to clean: Dish soap and water on the flap. No special cleaners.
- Locking cover: Molded ABS cover drops in from the top. Optional C-clamp lock available for extra security.
-
White frame: Aluminum or vinyl. Blends with most existing window frames.
Size Chart
- Small 5" w x 12" h
- Medium7 1/16"w x 13 1/16"h
- Large9" w x 20" h
Flap Dimensions:
5" w x 12" h
The entry way your dog goes through.
Height To Raise Window
18 1/2"
How high you must raise your window in order to fit the panel into the track.Flap Dimensions:
7" w x 16" h
The entry way your dog goes through. Height To Raise Window
22 1/2"
How high you must raise your window in order to fit the panel into the track.Flap Dimensions:
9" w x 20" h
The entry way your dog goes through.
Height To Raise Window
26 1/2"
How high you must raise your window in order to fit the panel into the track.| Flap Size | Flap Dimension | Height To Raise Window | Recommended Pet Height |
|---|---|---|---|
| Small | 5" w x 12" h | 18 1/2" | 9" - 15" |
| Medium | 7" w x 16" h | 22 1/2" | 9" - 21" |
| Large | 9" w x 20" h | 26 1/2" | 9" - 27" |
For your adjustment range, you need to measure the length of your sash window track from the furthest left to right. The adjustment range of your pet door should ideally have your track length in the middle. The following adjustment ranges are available:
- 22"-25"
- 25"-28"
- 28"-31"
- 31"-34"
- 34"-37"
- 37"-40"
- 40"-43"
Custom orders are subject to special restrictions.
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.
Installation Instructions
Difficulty
Easy
Steps
04
Time Required
0.5 hours
Sections
01
Flags
01
Parts
- Sash Window Pet Door
- Foam Weather Strip
- Center Post Weather Seal Draft Stopper
- Screwdriver
Tools
- Flathead Screwdriver
Please read instructions & notes thoroughly before installation.
Step 1 Release Spring Mechanism
- Loosen the width adjustment locks at the end of the pet door insert with the screwdriver. This allows the spring mechanism to move freely from side to side.
Step 2 Check Panel Fit
- Insert the sash into the window track. Push against the spring mechanism and swing the opposite end into the opposite window track. Gently release. Tighten the width adjustment locks.
Step 3 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.
Step 4 Mount Seal Draft Stopper
- Mount the Center Post Weather Seal Draft Stopper. This strip prevents air from leaking between the window frame when raised to accommodate the sash. Trim to fit with scissors.
- Put the panel back into the window track. Tighten width adjustment locks.
Switch the Side of the Flap
You can switch which side of the sash panel the pet door flap is on to best fit your home.
Step 1
- Remove the screws on the top and bottom closest to the edge of the pet door. Then slightly loosen the screws closest to the glass. Next, slide off the side piece, then the flap assembly.
Step 2
- Rotate the flap assembly (essentially flipping it upside down) then slide it back in. Make sure the locking cover is on the same side as the width adjustment locks.
Step 3
- Replace the end spacer and screws.
LOCKING YOUR WINDOW
For a permanent lock, install a wood screw in the track immediately above the window on both sides. You will no longer be able to raise the window. For a temporary lock, place a removable wooden dowel or Charley bar in either track above the window, shown in Detail 1.
HEIGHT OF YOUR WINDOW
Make sure you place steps or ramps leading to your pet’s door at a height that works! When they go through the flap, the top of the flap should be at least 1" (2,5 cm) higher than the top of their back. Watch your pet and adjust as needed to keep them comfortable.
Warranty
Warranty Type: Limited.
Duration: 3 years
Coverage: Defects in materials and workmanship under standard regular use.
Exclusions:
Damage caused by misuse or not using the product as intended.
Improper installation.
Damage caused by chewing.
Customer Reviews
Size Chart
- Small 5" w x 12" h
- Medium7 1/16"w x 13 1/16"h
- Large9" w x 20" h
Flap Dimensions:
5" w x 12" h
The entry way your dog goes through. Height To Raise Window
18 1/2"
How high you must raise your window in order to fit the panel into the track.Flap Dimensions:
7" w x 16" h
The entry way your dog goes through. Height To Raise Window
22 1/2"
How high you must raise your window in order to fit the panel into the track.Flap Dimensions:
9" w x 20" h
The entry way your dog goes through. Height To Raise Window
26 1/2"
How high you must raise your window in order to fit the panel into the track.| Flap Size | Flap Dimension | Height To Raise Window | Recommended Pet Height |
|---|---|---|---|
| Small | 5" w x 12" h | 18 1/2" | 9" - 15" |
| Medium | 7" w x 16" h | 22 1/2" | 9" - 21" |
| Large | 9" w x 20" h | 26 1/2" | 9" - 27" |
For your adjustment range, you need to measure the length of your sash window track from the furthest left to right. The adjustment range of your pet door should ideally have your track length in the middle. The following adjustment ranges are available:
- 22"-25"
- 25"-28"
- 28"-31"
- 31"-34"
- 34"-37"
- 37"-40"
- 40"-43"
Custom orders are subject to special restrictions.
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.
Difficulty
Easy
Steps
04
Time Required
0.5 hours
Sections
01
Flags
01
Parts
- Sash Window Pet Door
- Foam Weather Strip
- Center Post Weather Seal Draft Stopper
- Screwdriver
Tools
- Flathead Screwdriver
Please read instructions & notes thoroughly before installation.
Step 1 Release Spring Mechanism
- Loosen the width adjustment locks at the end of the pet door insert with the screwdriver. This allows the spring mechanism to move freely from side to side.
Step 2 Check Panel Fit
- Insert the sash into the window track. Push against the spring mechanism and swing the opposite end into the opposite window track. Gently release. Tighten the width adjustment locks.
Step 3 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.
Step 4 Mount Seal Draft Stopper
- Mount the Center Post Weather Seal Draft Stopper. This strip prevents air from leaking between the window frame when raised to accommodate the sash. Trim to fit with scissors.
- Put the panel back into the window track. Tighten width adjustment locks.
Switch the Side of the Flap
You can switch which side of the sash panel the pet door flap is on to best fit your home.
Step 1
- Remove the screws on the top and bottom closest to the edge of the pet door. Then slightly loosen the screws closest to the glass. Next, slide off the side piece, then the flap assembly.
Step 2
- Rotate the flap assembly (essentially flipping it upside down) then slide it back in. Make sure the locking cover is on the same side as the width adjustment locks.
Step 3
- Replace the end spacer and screws.
LOCKING YOUR WINDOW
For a permanent lock, install a wood screw in the track immediately above the window on both sides. You will no longer be able to raise the window. For a temporary lock, place a removable wooden dowel or Charley bar in either track above the window, shown in Detail 1.
HEIGHT OF YOUR WINDOW
Make sure you place steps or ramps leading to your pet’s door at a height that works! When they go through the flap, the top of the flap should be at least 1" (2,5 cm) higher than the top of their back. Watch your pet and adjust as needed to keep them comfortable.
Warranty
Warranty Type: Limited.
Duration: 3 years
Coverage: Defects in materials and workmanship under standard regular use.
Exclusions:
Damage caused by misuse or not using the product as intended.
Improper installation.
Damage caused by chewing.
