G-SDDB Glass Fitting Maxi Dual Glaze Pet Door — Black

The G-SDDB 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 options.

Yes — the G-SDDB's dual glaze frame is specifically designed to accommodate double-glazed panels. Note that toughened or sealed double-glazed units cannot be cut after manufacture — a new glass panel with the 267mm hole pre-cut must be ordered from your glazier.

No — the G-SDDB 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-SDDB 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-IDDB Intermediate dog door, or use our Pet Door Selector for a personalised recommendation.

Yes — the G-SDDC is the clear version and the G-SDDW is the white version — both with identical specifications.

The G-SDDB 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.