Opening sizes vary by model. Examples from listings include single-width openings (e.g., 13.8 in) and rectangular openings such as 10.5 in × 21 in or 12.25 in × 16 in.
Typical materials include metal (including aluminum) and plastic.
Many full-size pet doors use magnetic closures or sealed-flap designs to limit drafts, rain, and dust and to provide a more airtight seal against weather.
Wi‑Fi and power-enabled models typically use a coordinating collar sensor and a smartphone app to open and close the door, set timers, enable or disable sensors, and choose access modes such as in-only, out-only, full access, or closed/locked.
Designs include magnetic swinging flaps, segmented interlocking flap systems that seal with magnets, and powered doors that open upward.
Some models include energy-focused features such as magnetic airtight flaps, double-pane Low-E glass, and sealed flap designs to improve insulation and weather protection.
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