[Petoasis] 3-Flaps Heavy-Duty Dog Door
- Dog Gate
- 100 pounds
- Aluminum
- Magnetic
- Better rated than 85%
- More reviewed than 59%
A weather-focused option for large dog households needing a door that resists wind and moisture intrusion, not a smart or selective-entry system.
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How it ranks among the 109 dog gates we track
4.6★ across 1,065 Amazon ratings, Bayesian-smoothed toward the category average.
1,065 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
600+ 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: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
Aluminum alloy dog door with three flaps and magnetic closure, rated for doors up to 2.4 inches thick and pets up to 100 lb, in a large size for silvery white doors.
The rust-proof aluminum frame and triple-flap design are aimed at blocking wind, snow and rain rather than just giving a pet a pass-through, which matters more in exposed or cold climates than in a mild indoor-to-indoor install. It is not smart home connected, so it operates purely as a passive mechanical door.
- 3-flap heavy-duty design
- Rust-proof aluminum frame
- 100 lb weight capacity
- Magnetic closure
Who it's for
Fits owners installing a door for large dogs up to 100 lb in exterior doors up to 2.4 inches thick, particularly in climates with wind, snow or heavy rain. Not built for smart home integration or selective entry.
Strengths and trade-offs
Drawn from this product's published specifications.
- Rust-proof aluminum alloy frame
- Three flaps aimed at blocking wind, snow and rain
- Rated for pets up to 100 lb
- Not smart home compatible
- Fits doors only up to 2.4 inches thick
Performance notes
The three-flap layout adds overlapping barriers compared to a single-flap door, which Petoasis positions as reducing drafts and water intrusion, while the magnetic closure pulls each flap shut after the pet passes through.
Specifications
| Brand | [Petoasis] |
|---|---|
| Dimensions & fit | |
| Weight Capacity Maximum | 100 pounds |
| Dog Breed Size | Large |
| Construction & materials | |
| Material Type | Aluminum |
| Frame Material | Aluminum |
| Color | Silvery White |
| Compatibility & installation | |
| Maximum Compatible Thickness | 2.4 inches |
| Smart Home Compatibility | Not Smart Home Compatible |
| Included components | |
| Unit Count | 1 |
| Other details | |
| Closure Type | Magnetic |
| Pet Type | Dog |
| Best Sellers Rank | #5,400 in Pet Supplies (See Top 100 in Pet Supplies) #6 in Dog Doors |
| Manufacturer | Petoasis |
| Target Audience | Dogs |
| Model Number | Aluminum dog door |
| Manufacturer Part Number | DDM01 |
| Customer Reviews | {'ratings_count': '1,065', 'stars': '4.6'} |
| Asin | B0CWNGMZXF |
How it compares
This product against the closest alternatives we track in dog gates.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| [Petoasis] 3-Flaps Heavy-Duty Dog DoorThis product | 4.6 / 5 | 1,065 | 4.2 / 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 [Petoasis] dog gates
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
How thick a door does the Petoasis dog door fit?
It fits doors up to 2.4 inches thick.
What is the maximum pet weight for this door?
It is rated for pets up to 100 lb.
Is this dog door smart home compatible?
No, it is listed as not smart home compatible.