1 / 6Petoasis 3-Flap Large Aluminum Dog Door
Petoasis Aluminum dog door is a large, three-flap pet door with an aluminum frame and magnetic closure. Its insulated middle flap is intended to help limit drafts, while the stated maximum compatible thickness of 2.4 inches makes door or wall thickness an important fit check.
At a glance
- Three flaps include a claimed insulated middle layer intended to reduce weather transfer.
- The aluminum frame is described as thickened and reinforced.
- The manufacturer says it offers three years of after-sales service and a replacement flap at no charge if a flap is damaged during use.
Often bought together
Pros and cons
Pros
- Three-flap construction and a magnetic closure are intended to limit drafts compared with an open passage.
- Aluminum frame construction may suit buyers prioritizing a metal frame over a plastic one.
- The manufacturer states a maximum compatible thickness of 2.4 inches and a maximum weight capacity of 100 pounds.
Technical specifications
10 specifications| Brand | Petoasis |
|---|---|
| Model | Aluminum dog door |
| Size | Large |
| Pet type | Dog |
| Manufacturer part number | DDM01 |
| Material listed | Aluminum |
|---|---|
| Color | Silvery White |
| Maximum compatible thickness | 2.4 inches |
|---|---|
| Maximum weight capacity | 100 pounds |
| Closure type | Magnetic |
What to know before buying
- Confirm the opening dimensions and clearance for your dog before purchase. The listing gives a maximum compatible thickness of 2.4 inches but does not provide the door opening measurements in the supplied details.
- Customer feedback reports that some buyers found a gap of about 1/4 inch on either side, despite others reporting a good fit. Measure carefully and account for installation fit.
- The three-year after-sales service and no-charge replacement flap are manufacturer claims. The supplied information does not specify the service terms or claim process.
Who is it for?
A good fit for
- Dog owners seeking a large pet door with an aluminum frame and a three-flap design.
- Buyers who want a magnetic flap closure and an insulated middle layer, and whose installation surface is within the stated thickness limit.
Less suited to
- Buyers who need confirmed opening dimensions before selecting a door size.
- Installations where the door or wall is thicker than 2.4 inches.

Customer reviews on Amazon
- 5 stars
80% 80% - 4 stars
10% 10% - 3 stars
5% 5% - 2 stars
1% 1% - 1 star
4% 4%
Customer feedback highlights ease of installation, sturdy construction and perceived sealing against cold air and weather. Those reports are relevant for buyers looking for a three-flap door, but they describe customer experiences rather than a guaranteed result. Fit feedback is mixed: many customers say it fits well, while some report a gap of about 1/4 inch on either side. The overall rating distribution is mostly five-star, though a smaller share of ratings are lower, and ratings alone do not establish why customers chose them.
Positive themes
- Customers report easy installation and solid construction, including use with large dogs.
- Feedback describes tight sealing and reduced cold air or weather intrusion.
Mixed feedback
- Fit reports are mixed, with some customers noting a gap of about 1/4 inch on either side.
Frequently asked questions
What thickness can this dog door fit?
The listing states a maximum compatible thickness of 2.4 inches. It does not provide opening dimensions in the supplied details, so check the cutout requirements before buying.
What is the stated weight capacity?
The listing gives a maximum weight capacity of 100 pounds. This does not establish that every dog within that weight range will fit through the opening.
Does the door include an insulated flap?
The manufacturer describes three flaps with an insulated middle layer intended to reduce weather transfer. The listed closure type is magnetic.
What customer feedback is reported about fit and weather protection?
The supplied feedback describes positive experiences with installation, durability and sealing, while also noting that some customers reported a gap of about 1/4 inch on either side. Actual fit can depend on the opening and installation.

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