Namsan Cat Door for Screen Door, Passage 8.3 x 10.3 inches, Small Dog Door for Sliding Door, Cat Screen Window, Magnetic Flap Auto Closing, Screen Door with Doggie Door Built in, Lockable, Black Review
By Dr. Lena Ortiz · Canine wellness writer · Published 2026-06-21 · Updated 2026-06-26
This Namsan cat door is built specifically for screen and sliding doors, with a magnetic auto closing flap and lockable design that has earned a 4.4 star rating across 705 reviews.
Owners with a screen door or sliding door setup who want an affordable, lockable flap sized for cats and small dogs.
Skip if
You need a door for a solid wooden or metal exterior door rather than a screen door.
Priced 47% below the category median ($31.95 across 49 tracked models)
Our scorecard
4.4/5overall
Owner rating4.4/5
4.4 average across 705 owner ratings
Popularity2.6/5
705 owner reviews, more than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other dog and cat food, health, gear and grooming we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
["This Namsan cat door is priced at $17.09 and built specifically for screen doors, with an 8.3 x 10.3 inch passage opening. It's designed to integrate into a screen door with the pet door built in, aimed at sliding door setups where a full screen replacement might otherwise be needed.", "The flap closes with a magnetic auto closing mechanism, and the door includes a lockable feature so owners can restrict access when needed. It's finished in black, and Namsan positions it as suited to both cats and small dogs.", 'With 705 reviews and a 4.4 star average, this is one of the more heavily reviewed doors in this category, giving buyers a solid base of feedback on a relatively low priced product.']
Pros
Solid 4.4 star average across 705 reviews
Magnetic auto closing flap
Lockable for restricting access when needed
Built specifically for screen and sliding door setups
Affordable price at $17.09
Cons
Only suited to screen door installs, not solid exterior doors
No bought last month figure listed to confirm recent demand
Detailed material and thickness specs are not provided
Performance notes
The passage opening measures 8.3 x 10.3 inches, with a magnetic flap that closes automatically and a lockable mechanism, built into a screen door rather than a standalone frame.
What buyers say
A 4.4 star rating from 705 reviews reflects a large and generally positive sample of feedback for a budget priced screen door option.
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