How Do I Measure My Sliding Door for a Patio Pet Door?

Short Answer

Measure the internal height of your sliding door track (top to bottom). This is the space your Patio Pet Door needs to fit. Most standard sliding doors are compatible.

How to Measure Your Sliding Door

Follow these steps to make sure your Patio Pet Door will fit correctly:

Step 1: Measure Door Height

Measure from the inside of the top track to the inside of the bottom track.

• This is your total available height

• Always measure inside the track, not the outer frame
  
  

Tip: Patio Pet Doors sit inside the track, so external measurements may result in an incorrect fit.

Using Your Measurement

Once you have your measurement:

• Compare it with the height range listed on the product page

• If your door is taller than the base range, you may need extensions

All size ranges and specifications are available on each product page.

If Your Sliding Door Has a Raised Bottom Track

Some sliding doors include a small lip or ridge in the bottom track.

This can slightly reduce the usable height for installation.

If your door height is very close to the minimum required height, this may affect your fit.

What to Do

1. Measure your total door height (top to bottom track)

2. Measure the height of the bottom track lip

3. Subtract the lip height from your total height

This gives you your usable height.

You should ensure your usable height still fits within the required range for your Patio Pet Door.

Important Considerations

• Always measure inside the track for accuracy

• Ensure your measurement fits within the product’s height range

• If your door is close to the minimum height, double-check for any track lip or obstructions

Because sliding door designs vary between homes, customers should always measure their own door and confirm compatibility before purchasing.

Using Extensions

If your door height exceeds the standard size range, extensions may be required.

Extensions are available for:

• Glass Patio Pet Doors

• Mesh Patio Pet Doors

You can find all extension options in our Spare Parts menu.

Keywords

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