Description
Product Overview
The YGNNJY Dog Door Aluminum Insert is engineered for medium and small pets, delivering a robust, weather‑resistant solution that integrates seamlessly with existing sliding doors. Constructed from white aluminum, the frame resists corrosion and daily wear. The flap measures 8″ x 12.5″ (203 x 315 mm), providing ample space for comfortable passage. An adjustable height range of 75.8″ to 80.3″ allows precise alignment with various track systems, and a secure locking mechanism offers nighttime safety.
Usage
Designed for residential sliding doors, this insert works in homes with pets that need independent indoor/outdoor access. Ideal for families with small to medium dogs or cats, it fits living rooms, patios, or backyards where a sliding door leads to an outdoor area. The durable aluminum frame endures seasonal temperature changes, making it suitable for year‑round use.

Why Choose Us
YGNNJY combines high‑grade aluminum construction with a lockable flap, ensuring security without sacrificing style. The insert locks into existing tracks, preserving the door’s structural integrity and preventing drafts. Each unit undergoes strict quality checks, guaranteeing a product that meets pet‑owner expectations for safety, durability, and ease of installation.
Key Features
- Spacious 8″ x 12.5″ flap accommodates medium and small pets comfortably.
- Adjustable height (75.8″‑80.3″) fits a wide range of sliding door tracks.
- White aluminum frame offers corrosion resistance and a sleek look.
- Secure locking mechanism for night‑time or away‑from‑home safety.
- Easy installation without modifying the existing door structure.
FAQ
Will this door fit my sliding door?
The adjustable height range of 75.8″ to 80.3″ is compatible with most standard sliding door tracks. Measure your door’s track height to confirm compatibility before purchase.
Is the flap suitable for larger dogs?
This model is designed for medium and small pets. Larger breeds may require a larger flap size for comfortable passage.
How does the locking mechanism work?
The lock engages a latch on the flap, preventing it from opening. It can be easily engaged or released with a simple push, providing secure containment when needed.
Can I install the door myself?
Yes. The insert includes all necessary hardware and a step‑by‑step guide. Most users complete installation within an hour using basic tools.
Does the aluminum frame affect the door’s insulation?
The aluminum frame is thin yet sturdy and does not significantly impact the door’s insulating properties. Weather‑stripping is included to minimize drafts.




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