Glass Fitting Dog Doors

Glass Fitting Dog Doors

A dog door for a sliding glass door, French door or window — without ugly framing or external screws. Dogwalk® glass fitting dog doors glaze into a round hole cut in the glass panel itself, so the finished job looks factory-made from both sides. Round holes are also what glaziers prefer: a single cut, no corners to crack from.

Three flap sizes cover the range, all given width × height: the full-size door with a 270 × 313 mm flap for medium dogs, the intermediate at 216 × 250 mm, and the Maxi pet door at 187 × 203 mm for small dogs — each in standard and slimline bodies, and in clear, white or black to match your joinery. The dual glaze models take glass up to 32 mm thick, so double glazing is no obstacle. There’s a matching glass fitting cat door range too.

One thing to know before you order: an existing toughened or double-glazed panel can’t be cut after manufacture. The standard route is simple — your glazier orders a replacement panel with the hole pre-cut, and the door clamps in. Our guide to what that costs sets out the figures. Use our installer directory to find someone who does this every week, or run the Find Your Fit tool first to nail the model.

Showing all 11 results

G-DDSLC Glass Fitting Dog Door Slimline Clear
$105.99

G-DDSLC Glass Fitting Dog Door Slimline Clear

G-DDC Glass Fitting Dog Door Clear
$108.99

G-DDC Glass Fitting Dog Door Clear

Dogwalk G-DDW glass fitting dog door in white, 270 × 313 mm flap, 385 mm round cut-out
$136.99

G-DDW Glass Fitting Dog Door White

Dogwalk G-IDDSLC glass fitting intermediate dog door slimline in clear, 216 × 250 mm flap, 320 mm round cut-out
$89.99

G-IDDSLC Glass Fitting Intermediate Dog Door Slimline Clear

Dogwalk G-IDDC glass fitting intermediate dog door dual glaze in clear, 216 × 250 mm flap, 320 mm round cut-out
$105.99

G-IDDC Glass Fitting Intermediate Dog Door Dual Glaze Clear

Dogwalk G-IDDW glass fitting intermediate dog door dual glaze in white, 216 × 250 mm flap, 320 mm round cut-out
$89.00

G-IDDW Glass Fitting Intermediate Dog Door Dual Glaze White

Catwalk G-SDDSLC glass fitting maxi slimline pet door in clear, 203 × 187 mm flap, 267 mm round cut-out
$56.99

G-SDDSLC Glass Fitting Slim Line Pet Door Clear

Catwalk G-SDDSLW glass fitting maxi slimline pet door in white, 203 × 187 mm flap, 267 mm round cut-out
$54.99

G-SDDSLW Glass Fitting Maxi Slim Pet Door White

Catwalk G-SDDC glass fitting maxi dual glaze pet door in clear, 203 × 187 mm flap, 267 mm round cut-out
$59.99

G-SDDC Glass Fitting Maxi Dual Glaze Pet Door Clear

Catwalk G-SDDW glass fitting maxi dual glaze pet door in white, 203 × 187 mm flap, 267 mm round cut-out
$59.99

G-SDDW Glass Fitting Maxi Dual Glaze Pet Door White

Catwalk G-SDDB glass fitting maxi dual glaze pet door in black, 203 × 187 mm flap, 267 mm round cut-out
$59.99

G-SDDB Glass Fitting Maxi Dual Glaze Pet Door Black

Glass Fitting Questions, Answered

How does a dog door go into glass?
A round hole is cut in the glass panel before toughening, and the door clamps into that hole from both sides — self-lining, with no external screws. The result looks like the panel was made with the door in it, because effectively it was.
My sliding door is toughened glass — can it be cut?
Not after manufacture — toughened glass shatters if cut. The fix is routine: your glazier measures the panel, orders a replacement with the round hole pre-cut, and swaps it in. The dog door then fits into the new panel.
Does it work with double glazing?
Yes — the dual glaze models accept glass from 3 mm right up to 32 mm, which covers standard double-glazed units. The slimline versions suit thinner single glazing.
Which glass fitting dog door fits my dog?
Match the flap to the dog: 270 × 313 mm (width × height) for medium dogs up to roughly 450 mm at the shoulder and 20–25 kg, 216 × 250 mm for smaller-medium dogs, and 187 × 203 mm for small breeds. Our sizing guide covers how to measure, the size-by-breed guide gives you a starting point, and the Find Your Fit tool does the matching for you.
What happens if I move house or replace the glass?
The whole unit swaps out by undoing four screws, lifting it free and fitting it to the new panel — no glazier needed for that step. A glazier is only involved when glass itself has to be cut or fitted.
Who installs glass fitting dog doors?
Any glazier can do it, and the trade knows these doors well — the round cut-out is the shape glaziers ask for. Our installer directory lists specialists who fit pet doors every week, or your local glazier can order the cut panel and fit the door.
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