SucceBuy Adjustable Height Dog Door for Sliding Glass Doors Aluminum Frame

Let your furry family member enjoy safe, independent access to the outdoors with the SucceBuy Adjustable Height Dog Door for Sliding Glass Doors. Built for sliding patio doors, this unit combines a rugged aluminum frame, a durable metal cover, and a tempered glass window to withstand daily use and the elements. The 8 1/4" x 12 1/4" flap opening is intentionally sized for small pets, while the overall system is available in M, L, and XL to accommodate a range of dogs as they grow.

Why this dog door stands out

• Durable construction for tough conditions — upgraded metal cover and a sturdy hinge structure keep the flap intact in cold or brisk weather, so your pet can come and go without hesitation.
• Weather-ready aluminum frame with a tempered glass window that adds impact resistance and a clean, modern look to your door area.
• Wide applicability — adjustable height from 75 7/8" to 80 11/16" (1927–2049 mm) ensures a snug fit across a broad range of door heights, including non-standard frames.
• Secure, reliable access — built-in locking design lets you control when the door is open, keeping pets safe when you’re away or during the night.
• Non-permanent, tool-free installation — slides into your sliding glass door track for an easy setup without drilling or permanent modifications, making it ideal for renters or anyone seeking a removable option.

Designed for real-life use

The 8 1/4" x 12 1/4" flap is purpose-built for small pets such as small dogs and cats, providing a comfortable, effortless passage. For households with larger companions, choose from M, L, or XL sizes to ensure a proportional, smooth entry and exit. This door lets you balance indoor safety with outdoor freedom—your pet can explore on their terms while you maintain control and security from anywhere in the home.

Ideal for whom and where

• Pet owners with sliding glass doors who want a seamless, integrated entry point for their dogs or cats.
• Renters or condo residents seeking a non-permanent solution that won’t alter the door frame.
• Homes that experience temperature variation, where a sturdy hinge and metal cover protect the door flap during cold seasons.

Tips for a perfect setup

• Measure your door height first and use the adjustable range (75 7/8"–80 11/16") to confirm a precise fit before installation.
• Test the lock mechanism to ensure you can quickly secure or open the door as needed.
• Install in a sliding door track that supports a non-permanent insert for easy removal if you ever need to revert to a standard door.