Cat Flap Door – Magnetic 4-Way Locking Pet Door for Interior & Exterior Doors
Cat Flap Door – Magnetic 4-Way Locking Pet Door for Interior & Exterior Doors
📏 Pet Size Guide
Measure your pet before choosing a size. When in doubt, size up.
| Size | Weight | Body Length | Chest Girth | Neck Girth | Best For |
|---|---|---|---|---|---|
| XS | 1–4 kg (2–9 lbs) | 20–30 cm | 25–35 cm | 15–22 cm | Kittens, Chihuahuas |
| S | 4–8 kg (9–18 lbs) | 30–40 cm | 35–45 cm | 22–30 cm | Cats, small dogs |
| M | 8–15 kg (18–33 lbs) | 40–55 cm | 45–60 cm | 30–40 cm | Medium dogs |
| L | 15–25 kg (33–55 lbs) | 55–70 cm | 60–75 cm | 40–50 cm | Large dogs |
| XL | 25–40 kg (55–88 lbs) | 70–90 cm | 75–95 cm | 50–60 cm | X-large dogs |
| XXL | 40+ kg (88+ lbs) | 90+ cm | 95+ cm | 60+ cm | Giant breeds |
How to Measure
- Body Length: Nose to base of tail, lying flat
- Chest Girth (key!): Widest part of chest — add +2–5 cm buffer
- Neck Girth: Where collar/harness sits
💡 Tips
- Between sizes? Size up for comfort
- Senior or growing pets: allow extra room
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Customer Reviews
corresponds to the description
very good product
Really high quality!! There is an option at the door to allow only entry or exit, closed and open, which is really cool! Unfortunately, I won't have any use for it because it's suitable for walls and doors, and I wanted it for the window mesh.
The ball works well.
Good quality and works very well.
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Product Information
Product Information
Give your cat freedom to come and go — on your terms, with four-way locking control.
The Problem
Cats that want access between rooms — to a litter box, to a food station, or simply to roam — need you to physically open and close doors on demand. That's manageable at 2pm. At 3am, it isn't. And blocking a cat from areas they want to access causes stress behaviors: scratching at doors, meowing, and general resentment. The door between you and an angry cat needs a better solution.
The Solution
This 4-way locking cat flap installs in most standard interior and exterior doors, giving your cat the ability to pass freely — or locked in any direction you choose. The magnetic flap closes quietly behind them. Four locking positions (in only, out only, both ways, fully locked) give you full control over access without ever getting out of bed at 3am.
Key Benefits
- ✓ Cat independence without owner involvement – Your cat comes and goes as needed; you're not the doorman
- ✓ 4-way locking control – Set to in-only, out-only, bidirectional, or fully locked depending on situation
- ✓ Quiet magnetic closure – Magnetic seal closes silently; no slamming flap noise at 3am
- ✓ Weatherproof for exterior use – Designed for exterior doors with draft-resistant seal
- ✓ DIY installation – Includes template and hardware; installs in most wooden, PVC, or hollow-core doors
Key Features
- 4-way manual lock – Rotary selector for in-only/out-only/both/locked positions
- Magnetic closing flap – Self-closing magnetic seal; quiet and draft-resistant
- Tunnel insert design – Extendable tunnel accommodates different door thicknesses
- Template included – Cutting template for accurate installation hole sizing
- Available in multiple sizes – Small (cats up to 4 kg), Medium (cats up to 7 kg), Large (for cats or small dogs)
Ideal For
- Indoor cats that need autonomous access to a litter box room, feeding station, or separate living area
- Owners who want to give outdoor access without being the door-opener
- Multi-pet households where cat-only zones are needed (keeping dogs out of litter areas)
FAQs
Can my dog use this instead of my cat?
This flap is sized for cats and small dogs only. The small and medium sizes are cat-specific. For dogs, check the maximum shoulder width and weight limits carefully — if your dog doesn't fit the dimension specs, they won't pass through safely.
How difficult is installation?
Installation requires cutting a hole in your door according to the included template, then fitting the frame on both sides. It's achievable as a DIY project with basic tools (jigsaw or hole saw, screwdriver). Most installations take 30–60 minutes. Check your door's construction first — hollow-core interior doors install differently than solid wood or PVC.
Will it keep drafts out?
The magnetic seal significantly reduces drafts compared to a non-magnetic flap. For exterior installation, the draft-reduction is meaningful but not perfect in very cold or windy conditions. For maximum insulation in extreme climates, look for double-flap models.
Doors That Work For Both of You
Your cat gets freedom. You get uninterrupted sleep. Add to cart and install it this weekend.
Shipping Information
Shipping Information
Thank you for choosing Petmartopia! We are committed to getting your pet's favorites to your doorstep as quickly and safely as possible.
1. Order Processing
All orders are processed within 1–3 business days (excluding weekends and holidays) after receiving your order confirmation email. You will receive another notification when your order has shipped.
Note: During high-volume seasons or sales, processing may take up to 5 business days. We appreciate your patience!
2. Shipping Rates & Estimates
We offer Free Express Shipping on all orders within the United States. No minimum purchase is required.
| Shipping Option | Estimated Delivery | Price |
|---|---|---|
| Express Shipping | 3–7 Business Days | FREE |
3. How do I check the status of my order?
When your order has shipped, you will receive an email notification from us which will include a tracking number you can use to check its status. Please allow 48 hours for the tracking information to become available.
If you haven't received your order within 15 days of receiving your shipping confirmation email, please contact us at support@petmartopia.com with your name and order number, and we will look into it for you.
Address Accuracy
Please ensure your shipping address is correct at checkout. Petmartopia is not responsible for orders shipped to an incorrectly entered address. If you notice an error, please email us immediately so we can attempt to correct it before the order is processed.
4. Damages & Issues
Petmartopia is not liable for any products damaged or lost during shipping. If you received your order damaged, please contact the shipment carrier to file a claim. Please save all packaging materials and damaged goods before filing a claim.
Refunds & Returns
Refunds & Returns
At Petmartopia, we want you and your pet to be 100% satisfied. If a product isn’t the right fit, our return process is designed to be simple, fair, and hassle-free.
Our 30-Day Guarantee
You have 30 days from the date your item was delivered to request a return. We accept returns on both used and opened items — no need for original packaging. If it didn’t work for your pet, we want to make it right.
Return Process
To ensure your return is processed quickly, please follow these steps:
- ✅ Step 1: Contact our customer service team at support@petmartopia.com to request a return authorization.
- 📦 Step 2: Pack the item securely. Original packaging is not required.
- 📝 Step 3: Include your Order Number (e.g., #PM1234) and return reason with your package.
- 🚚 Step 4: Ship the item to the address provided in your return authorization. We cover return shipping costs — a prepaid label will be provided.
Note: Items sent back to us without a prior return authorization will not be accepted.
Damages and Issues
Please inspect your order upon reception. If the item is defective, damaged, or if you receive the wrong item, contact us immediately at support@petmartopia.com so that we can evaluate the issue and make it right.
Non-Returnable Items
Certain types of items cannot be returned: perishable goods (pet food/treats), custom or personalized products, and gift cards. Sale items are final sale and non-returnable.
Refunds
Once we’ve received and inspected your return, we will notify you of the approval status. Approved refunds are processed automatically to your original payment method within 5–10 business days.
📧 Return Shipping
Petmartopia covers all return shipping costs. Once your return is authorized, we will email you a prepaid return shipping label. You will not be charged for return postage under any circumstances.
How It Works
This product is selected against Petmartopia's calm-first, comfort-first standards: every product must demonstrably improve your pet's daily experience, use pet-safe materials, and meet our practical durability standards for everyday household use. All products are backed by a 30-day comfort guarantee.
Who It's Best For
- Pet owners prioritizing their pet's comfort, safety, and daily wellbeing
- Households with anxious, reactive, or senior pets that need specialized care
- Multi-pet households looking for reliable, durable everyday essentials
- New pet owners building a complete, thoughtfully designed pet care routine
Real Results from Pet Owners Like You
My dog stopped running away during grooming
My dog used to panic every time I tried to groom him. Now he stays calm and lets me finish without stress.
First time trimming my puppy's nails — no fear, no tears
The LED light shows exactly where to cut so I never hit the quick. My puppy didn't resist at all. Smooth, clean trim in minutes. I finally stopped dreading nail day.
Finally found products my pets actually enjoy
Everything feels thoughtfully designed and easy to use. My dog is calmer, happier, and more comfortable.
More Calm Essentials Pet Parents Love
Why Pet Parents Choose Petmartopia — Not Other Pet Stores
✔ See the difference before you choose
| What Matters | Petmartopia | Other Pet Stores |
|---|---|---|
| Product Design | ✅ Comfort-first, designed for real pet behavior | ❌ Designed for looks — not pet wellbeing |
| Pet Anxiety | ✅ Calmer pets — less stress every day | ❌ Generic products that ignore pet stress |
| Product Quality | ✅ Durable materials built to last | ❌ Cheap materials that break quickly |
| Value for Money | ✅ Premium quality at fair prices | ❌ Overpriced or low quality for the cost |
| Safety | ✅ Pet-safe materials, rigorously selected | ❌ Unknown materials, minimal safety checks |
| Customer Support | ✅ 30-day guarantee, easy returns | ❌ Difficult returns, slow support |
Trusted by Verified Pet Owners across the US — because your pet deserves better.
30-Day Risk-Free Trial — Love It or Pay Nothing
If your pet isn't happier or the product isn't better, we'll make it right — no questions asked.
Give Your Pet the Comfort They Deserve
Start Today
No compromise. No guesswork. Just happier pets.
Secure checkout • Easy returns • No hidden fees
Most pet owners notice a difference within the first week.