Catwalk® Glass Fitting · Maxi Dual Glaze

G-SDDC Glass Fitting Maxi Dual Glaze Pet Door — Clear

The Catwalk® G-SDDC is a maxi dual glaze glass fitting pet door in clear, suitable for all cats — including large breeds such as Maine Coons — and small dogs up to about 300mm at the shoulder, through a usable opening of 187mm wide × 190mm high. Its deeper frame accommodates glass from 3mm to 28mm thick, making it ideal for double-glazed units as well as single glazing. For slim line single glazing installations, see the G-SDDSLC. One of Pet-Tek's most popular models worldwide. 3-year manufacturer's warranty*. Designed in New Zealand by Pet-Tek International since 1999.

Specifications

Glass Thickness
3mm – 28mm
Cut-Out Size
267mm dia (round)
Usable Opening (W × H)
187mm × 190mm
Flap Panel (W × H)
187mm × 203mm
Compatible Glass
Single & double glazing
Finish
Clear
Recommended For
All cats & small dogs
Shoulder Height (dogs)
Up to about 300mm

Frame Projection

Inner Frame
16.22mm projection depth
Outer Frame
11.72mm projection depth

Key Features

  • Dual glaze frame — suits single and double glazing up to 28mm
  • Clear frame — virtually invisible in the glass
  • Round 267mm cut-out — glazier drills a single hole
  • No external screws — clean, seamless appearance
  • Full brush seals on all four sides — draught-free and weatherproof
  • 4-way locking dial with additional security pin
  • UV-stabilised high-impact polycarbonate flap — same material as aircraft windows
  • 3-year manufacturer's warranty*
  • Designed in New Zealand by Pet-Tek International since 1999

Enquire About This Product →
📏 Buying for a cat or a small dog? The Maxi’s 187mm × 190mm usable opening suits every cat, including large breeds like Maine Coons, and small dogs up to about 300mm at the shoulder. For dogs, measure before ordering — check the dog door sizing guide or learn how to measure your pet; dogs near the limit are better served by the Intermediate range.

Watch: How a Glass Fitting Pet Door Is Installed

Watch the install — then give your glazier this
  • Round cut-out size: 267mm diameter for the G-SDDC
  • Your glass type & thickness: single or double glazing, 3–28mm
  • The fitting instructions from the box — glass range and clamping detail

Any qualified glazier can do this — most complete it in under an hour. Toughened or sealed units need a new panel with the hole pre-cut.


Frequently Asked Questions

Both have the same 267mm cut-out and 187mm × 190mm usable opening (flap panel 187mm × 203mm). The G-SDDC is the dual glaze version with a deeper frame accommodating glass up to 28mm, suited to double-glazed units. The G-SDDSLC is the slim line version with a lower profile frame, suited to single glazing and sliding doors up to 21mm.
The G-SDDC suits glass from 3mm to 28mm thick, covering standard single glazing and most double-glazed units. For glass thicker than 28mm, please contact us to discuss your options.
No — the G-SDDC requires professional glazier installation. A 267mm round hole must be drilled through the glass using specialist equipment. Attempting DIY installation risks cracking or shattering the glass. Contact us if you need a referral.
The G-SDDC is the Catwalk® Maxi pet door — for all cats, including large breeds such as Maine Coons, and small dogs up to about 300mm at the shoulder, such as Chihuahuas, Toy Poodles, Maltese and Yorkshire Terriers. The usable opening is 187mm wide × 190mm high (the flap panel is 203mm high; about 13mm sits in the hinge). Before ordering, measure your pet standing: width at the widest point + 25mm must fit inside 187mm, and body depth (top of shoulders to bottom of chest) + 25mm inside 190mm. Fit the door with the bottom of the opening level with your pet’s belly. Bigger dog? See the G-IDDC Intermediate dog door, or use our Pet Door Selector for a personalised recommendation.
Yes — the G-SDDW is the white dual glaze version and the G-SDDB is the black version — both with identical specifications.
The G-SDDC dual glaze frame projects 16.22mm on the inner face and 11.72mm on the outer face of the glass. The deeper inner projection accommodates the full thickness range of double-glazed units up to 28mm.

Retailers, Glaziers & Distributors

Stock the G-SDDC. Pet-Tek International is a New Zealand pet door designer and wholesale supplier since 1999 — supplying pet stores, hardware chains, garden centres and glaziers in 20+ countries. Trade pricing, export support, and local stock in Melbourne & Sydney for Australian trade buyers.

Become a Distributor →
Ships to 20+ countries | +64 9 570 2001 | [email protected] | Designed in NZ since 1999
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