Short Answer
The Mesh Patio Pet Door fits sliding door openings from 1400–2840 mm (55.1–111.8") using optional Top Extensions.
If your sliding door is taller than the standard height, you can install up to 2 Top Extensions to increase the overall height of the pet door.
Which Top Extension Do I Need?
Used to increase the overall height of the Mesh Patio Pet Door for taller sliding door openings.
Small
| Sliding Door Opening | Configuration |
|---|---|
| 1400–2140 mm (55.1–84.3") | No Top Extension |
| 1750–2490 mm (68.9–98.0") | 1 × Top Extension |
| 2100–2840 mm (82.7–111.8") | 2 × Top Extensions |

Medium
| Sliding Door Opening | Configuration |
|---|---|
| 1500–2140 mm (59.1–84.3") | No Top Extension |
| 1850–2490 mm (72.8–98.0") | 1 × Top Extension |
| 2200–2840 mm (86.6–111.8") | 2 × Top Extensions |

Large
| Sliding Door Opening | Configuration |
|---|---|
| 1600–2140 mm (63.0–84.3") | No Top Extension |
| 1950–2490 mm (76.8–98.0") | 1 × Top Extension |
| 2300–2840 mm (90.6–111.8") | 2 × Top Extensions |

The diagrams below show the available extension configurations for each door size. Bottom Risers are included for reference because they increase the overall installed height of the unit, but they are primarily intended to raise the flap height for taller pets.
Available Extensions
Top Extension
Adds 350 mm (13.8") to the overall height of the Mesh Patio Pet Door.
- Used to increase the overall height of the Mesh Patio Pet Door for taller sliding door openings.
- Up to 2 Top Extensions can be installed.
Also Using Bottom Risers?
Bottom Risers are designed to raise the flap height for taller pets, making it easier for them to comfortably use the Mesh Patio Pet Door.
Because a Bottom Riser sits beneath the pet door, it also increases the overall installed height by 75 mm (3"). If you plan to use one or two Bottom Risers, remember to include this additional height when checking whether your sliding door opening is suitable.
? If you're unsure whether your pet would benefit from Bottom Risers, see Can I Raise the Flap Height for a Taller Pet? – Mesh Patio Pet Door.
Important Considerations
- Maximum 2 Top Extensions.
- Extensions are size specific.
- Always measure your sliding door opening.
- Bottom Risers also increase the overall installed height by 75 mm (3") each.
Related Articles
- How Do I Measure My Pet for a Pet Door?
- How Do I Measure My Sliding Door for a Patio Pet Door?
- Can I Raise the Flap Height for a Taller Pet? – Mesh Patio Pet Door
- How Do I Install Mesh Patio Pet Door Extensions?
Keywords
mesh patio pet door extensions, mesh patio pet door height extension, extend mesh patio pet door, taller sliding door pet door, mesh patio pet door top extension, mesh patio pet door extension guide, mesh patio pet door compatibility, sliding door pet door extensions
Was this article helpful?
That’s Great!
Thank you for your feedback
Sorry! We couldn't be helpful
Thank you for your feedback
Feedback sent
We appreciate your effort and will try to fix the article