Best Portable Pet Door

Amazon Basics - 2-Door Top-Load Hard-Sided Dogs, Cats Pet Travel Carrier, Gray & Blue, 22.8"L x 15.0"W x 13.0"H

Petmate Two Door Pet Kennel for Pets up to 15 Pounds, Pink/Black, 19" Long, Made in USA

Kfvigoho Dog Playpen Outdoor Extra Wide 16 Panels Heavy Duty Dog Fence 32" Height Anti-Rust with Doors Portable for RV Camping Yard, Total 42FT, 140 Sq.ft, Snowy Black

PetSafe Happy Ride Foldable Pet Ramp, Lightweight Dog Ramp Durable Material Construction, Supports Up to 150 Lb, High Traction Surface, Safety Latch for Secure Storage, Outdoor Pet Ramp (Dark Gray)

Lesure Collapsible Dog Crate - Portable Dog Travel Crate Kennel for Extra Large Dog, 4-Door Pet Crate with Durable Mesh Windows, Indoor & Outdoor (Beige)

Pet Gate - 4-Panel Indoor Foldable Dog Fence for Stairs, Hallways, or Doorways - 72x24-Inch Retractable Wood Freestanding Dog Gates by PETMAKER (Gray)

Amazon Basics Foldable Octagonal Metal Exercise Pet Play Pen for Dogs, Fence Pen, No Door, Extra Small, 60 x 60 x 24 Inches, black

Toddleroo by North States Supergate Ergo Child Gate, Baby Gate for Stairs and Doorways. Includes Wall Cups. Pressure or Hardware Mount. Made in USA. (26" Tall, Sand)

MidWest Homes for Pets Dog Exercise Pen & Playpen, 24"W x 30"W, No Door, Black

New World Dog Exercise Pen & Playpen, 24" W x 30" H, No Door, Black