Glass Patio - Extension Height Guide

Modified on Fri, 15 Aug at 12:45 PM

How tall can I extend the Glass Patio Pet Door using extensions?

We currently offer two versions of the Glass Patio Pet Door:

Version 1 (V1) — Available from 2023 to June 2025
Version 2 (V2) — Released from June 2025 onwards

Each version includes key updates to installation and design features, so it's important to identify which one you have before purchasing accessories or replacement parts.

Glass Patio - General - How to Differentiate Between V1 & V2 Glass Patio Pet Doors

V2 Glass Patio Pet Door ( June 2025 > )

Extension Panel Options

Top Metal Extension
Adds 160 mm | 6.3" height.
Maximum of 2 can be stacked.

Middle Glass Extension
Adds 400 mm | 15.7" height.
Can be used with only 1 Top Metal Extension.
Cannot stack more than 1 Middle Glass Extension.

Bottom Riser
Adds 50 mm | 2" height to the small.
Risers cannot be stacked. Height varies by door size:
- Small: 50 mm → 100 mm
- Medium: 100 mm → 150 mm
- Large: 150 mm → 200 mm

COMBINATION GUIDE	EXTENSIONS	TOTAL HEIGHT
	No Extensions	1960–2120 mm
1	1 x Top Extension Add 160 mm H	2120–2280 mm
2	2 x Top Extensions Add 320 mm H	2280–2440 mm
3	1 x Top Extension Add 160 mm H 1 x Middle Extension Add 400 mm H	2520–2680 mm
4	1 x Top Extension Add 160 mm H 1 x Middle Extension Add 400 mm H 1 x Bottom Riser Add 50 mm H	2570–2710 mm
5	1 x Middle Extension Add 400 mm H	2360–2520 mm
6	1 x Bottom Riser Add 50mm H	2010–2170mm Flap position with bottom riser installed: S: 50 mm → 100 mm M: 100 mm → 150 mm L: 150 mm → 200 mm

We offer infographics that depict the dimensions and specifications covered in this article on the V2 Glass Patio Pet Door Spare Parts > Extensions product page. Additionally, some graphics are available to represent the dimensions and specifications within the article visually: Glass Patio - Size & Specifications.

Glass Patio Pet Door – Version 1 (2023 – June 2025)

For specifications or parts information on the Version 1 Glass Patio Pet Door, please contact our Customer Support team.

Glass Patio - Extension Height Guide

How tall can I extend the Glass Patio Pet Door using extensions?

V2 Glass Patio Pet Door ( June 2025 > )

Extension Panel Options

Top Metal Extension
Adds 160 mm | 6.3" height.
Maximum of 2 can be stacked.

Middle Glass Extension
Adds 400 mm | 15.7" height.
Can be used with only 1 Top Metal Extension.
Cannot stack more than 1 Middle Glass Extension.

Bottom Riser
Adds 50 mm | 2" height to the small.
Risers cannot be stacked. Height varies by door size:

Small: 50 mm → 100 mm

Medium: 100 mm → 150 mm

Large: 150 mm → 200 mm

Glass Patio Pet Door – Version 1 (2023 – June 2025)

Glass Patio - Extension Height Guide

How tall can I extend the Glass Patio Pet Door using extensions?

V2 Glass Patio Pet Door ( June 2025 > )

Extension Panel Options

Top Metal ExtensionAdds 160 mm | 6.3" height.Maximum of 2 can be stacked.

Middle Glass ExtensionAdds 400 mm | 15.7" height.Can be used with only 1 Top Metal Extension. Cannot stack more than 1 Middle Glass Extension.

Bottom RiserAdds 50 mm | 2" height to the small.Risers cannot be stacked. Height varies by door size:

Small: 50 mm → 100 mm

Medium: 100 mm → 150 mm

Large: 150 mm → 200 mm

Glass Patio Pet Door – Version 1 (2023 – June 2025)

Top Metal Extension
Adds 160 mm | 6.3" height.
Maximum of 2 can be stacked.

Middle Glass Extension
Adds 400 mm | 15.7" height.
Can be used with only 1 Top Metal Extension.
Cannot stack more than 1 Middle Glass Extension.

Bottom Riser
Adds 50 mm | 2" height to the small.
Risers cannot be stacked. Height varies by door size: