Cat Door for Wall, Energy Efficient Pet Door with Steel Frame, Telescoping Tunnel, Double…
- Dog Gate
- 22 pounds
- Alloy Steel
- Magnetic
- Better rated than 85%
A wall-through pet door with an adjustable tunnel, best for small cats or dogs within its 22 lb limit.
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How it ranks among the 109 dog gates we track
4.6★ across 451 Amazon ratings, Bayesian-smoothed toward the category average.
451 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
200+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 109 dog gates we track - how the scorecard works · full dog gates data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
This Decormax pet door installs through a wall with a steel frame and telescoping tunnel, sized for walls between 4 and 8 inches thick. The small size model holds up to 22 lbs and uses double magnetic flaps with two sliding lock panels to control access.
The listing data mixes cat and dog fields inconsistently, calling it a cat door in the title while also listing a small dog breed size and dog target audience in the specs, but the steel frame, wall-thickness range and 22 lb capacity describe a door sized for cats or small dogs. The telescoping tunnel is what lets it adjust across that 4 to 8 inch range.
- Steel frame, telescoping tunnel
- 4-8 inch wall thickness range
- 22 lb weight capacity
- Double magnetic flaps
Who it's for
Fits owners installing a permanent wall-through door for a cat or small dog under 22 lbs, in a wall between 4 and 8 inches thick. Not suitable for walls outside that thickness range or pets over the weight limit.
Strengths and trade-offs
Drawn from this product's published specifications.
- Fits wall thickness from 4 to 8 inches
- Steel frame construction
- Two sliding lock panels for access control
- Weight capacity limited to 22 lbs
- Listing specs mix cat and dog terminology, so confirm sizing before buying
Performance notes
The telescoping tunnel lets the frame fit walls of varying thickness within its stated range, while the double magnetic flaps and two sliding lock panels let you lock the door shut from one or both sides when needed rather than leaving it open at all times.
Specifications
| Brand | cat |
|---|---|
| Model | DMSS100-2S-2W |
| Dimensions & fit | |
| Weight Capacity Maximum | 22 pounds |
| Dog Breed Size | Small |
| Construction & materials | |
| Material Type | Alloy Steel |
| Frame Material | steel |
| Color | White |
| Compatibility & installation | |
| Maximum Compatible Thickness | 8 inches |
| Minimum Compatible Thickness | 4 inches |
| Included components | |
| Unit Count | 1 |
| Other details | |
| Closure Type | Magnetic |
| Pet Type | Cat |
| Best Sellers Rank | #23,184 in Pet Supplies (See Top 100 in Pet Supplies) #68 in Dog Doors |
| Manufacturer | Decormax |
| Target Audience | Dogs |
| Model Number | DMSS100-2S-2W |
| Manufacturer Part Number | DMSS100-2S-2W |
| Customer Reviews | {'ratings_count': '451', 'stars': '4.6'} |
| Asin | B0BPGXHVD1 |
Other cat dog gates
How it compares
This product against the closest alternatives we track in dog gates.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Cat Door for Wall, Energy Efficient Pet Door with Steel Frame, Telescoping Tunnel, Double…This product | 4.6 / 5 | 451 | 4.1 / 5 |
| Regalo Safety 29-38.5" Baby Gate for Doorways & Bottom of StairsRegalo | 4.5 / 5 | 172,400 | 4.5 / 5 |
| Safety 1st Easy Install Walk Thru Baby Gate for Doorway With DoorSafety | 4.5 / 5 | 22,100 | 4.5 / 5 |
| Evenflo Expansion Walk-Thru Room Divider Baby GateEvenflo | 4.6 / 5 | 9,400 | 4.5 / 5 |
| PetSafe Never Rust Wall Entry Pet DoorPetSafe | 4.6 / 5 | 9,183 | 4.4 / 5 |
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Questions about the cat DMSS100-2S-2W
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What wall thickness does this door fit?
It's designed for walls between 4 and 8 inches thick, adjusted using the telescoping tunnel.
What is the maximum pet weight for the small size?
22 lbs.
Can the door be locked shut?
Yes, it has two sliding lock panels in addition to the magnetic flaps.