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Dog door for indoor use
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Dog door for indoor use

Suitable for all interior doors

Customer 1 Customer 2
Tim, Sabine and +10,000 more customers love our products

In stock – Delivery time 1–3 business days

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Premium quality

Made in Germany

2-year warranty

On all our products

Product details

Take your home to the next level – with the innovative designer dog door by Solid. Your dog will love it!

The dog door was specially developed for small dogs and allows your four-legged friend to move freely between rooms – without you having to leave doors open all the time. With its minimalist design, it blends discreetly into any interior.

The door fits all standard interior or room doors (40, 42, and 45 mm). Thanks to the perforated inner frame, it can easily be adjusted to the correct door thickness.

Optional locking system: This allows you to easily close the passage when needed and decide for yourself when your dog gets access to the next room.

Installation is straightforward: mark out with the included cutting template, cut out with a jigsaw, and fix the door with 4 screws on each side. Made in Germany from high-quality, durable material.

Size:

  • For small dogs – 22 × 22 cm door opening (not suitable for medium or large dogs)

Solidly built. Minimalist and functional.

Developed and produced in Germany.

Shipping & Delivery Time
  • Ready for dispatch in 1-3 business days directly from our production in Germany

  • Worldwide shipping via DHL

  • Delivery times & costs:
  • Germany: 2-4 business days · €4.90
  • Europe: 4–6 business days · €16.90
  • Switzerland: 6–8 business days · €18.60
  • America: 8–12 business days · €32.00
Materials & Production

Each product is manufactured exclusively in our own private workshop.

For production we use a mixture of state-of-the-art 3D printing processes and traditional craftsmanship .

We only use solid and sustainable PLA plastics.

Short supply chains, little waste, high precision.

This way it remains individual, long-lasting and responsible.

Return & Warranty
  • Return possible within 14 days

  • Returns are free of charge , return costs are borne by the customer

  • We provide a 2-year warranty on the functionality of all products

  • Excluded: improper use or deliberate damage

Alternative versions

Can't find the right size or color ? We also offer custom-made products.

WhatsApp Enquire now | from €79.90 ->

Frequently Asked Questions

Will the flap fit in my door?

Yes.

There are basically 3 standardized sizes of interior doors worldwide: 40, 42 & 45 mm deep.

The cat flap is perforated in the inner frame and can be easily adjusted to the appropriate depth by cutting a slit.

If you have an exceptionally thick or thin door, we also offer:

Custom-made to order ->

How do I install the cat flap?

Installation is simple and usually only takes 10-15 minutes .

All you need is a pencil, a jigsaw and a small screwdriver - no further technical knowledge required.

A cutting template is included.

Do I need any special tools?

No.

All you need are common household tools (pen for marking, jigsaw & small screwdriver).

No prior craft knowledge is required.

Can I install the cat flap myself?

Yes – most of our customers install them themselves .

Installation is easily manageable even for beginners.

Installation instructions are included.

Does the cat flap make any noise?

No.

The flap is quiet and closes gently – without rattling or loud slamming .

Perfect for apartments and use at night.

How do I teach my cat?

Most cats learn it very quickly .

Initially, it helps to keep the flap open with a piece of tape and guide the cat through with treats or toys.

After a short time, most cats use the flap as a matter of course .