Reviews: dual flap dog door

Dogs

Plastic Dog Door for Door, Never Rust Doggy Door, Doggie Door for Interior and Exterior Doors, Large Plastic Pet Door with Double Magnetic Flaps, Closing Panel, Pet Up to 100 LBS (White)

My hands-on take on the Tiylibe Plastic Dog Door (Large): a weather-conscious, plastic-frame pet door with dual magnetic flaps and a removable closing panel that fits doors 1.02"–2.36" thick.

Dogs

Extra Large Dog Door for Exterior Doors, Heavy Duty Aluminum Doggy Door for Extreme Weather, Cutout Size 14 1/2''W x 25 1/8''H, Giant Dog Door Up to 220 lbs, Lockable

A heavy-duty aluminum dog door for giant and large breeds with dual flaps, magnetic seal, and a lockable panel. Solid in many installs, but expect a noisy, stiff flap and a serious cut-and-rivet installation.