Invisible fire-resistant inspection door under tiling 400x400

Invisible fire-resistant inspection door 400×400 mm: a hidden functional element for a perfect interior

A unique solution for your home

The ZAVRZ invisible fire-resistant inspection door 400×400 mm is the ideal solution for elegant integration into clad walls. The stated dimension is the sum of the dimensions of the tiles glued to the leaf. The structural opening is as per the drawing documentation in the image. Suitable for standard tile sizes 100×100 mm, 200×200 mm and 400×200 mm, this door is a perfect solution that preserves the aesthetics of your space without visible intervention.

In the implementation of new projects, such as multi-story residential units, hotels and office buildings, or in renovations requiring fire separation, the indispensable importance of inspection doors becomes apparent. It offers an ideal solution for concealed installation under tiling, thanks to its unique construction and certification for use in various types of walls, for aesthetic access to technical shut-offs such as water taps, gas valves or meters, especially in environments where a visually clean appearance is important.

Modern and practical "Click" opening

Thanks to the innovative "click" opening system, which is a protected European patent, we offer a modern solution without visible handles. This system allows easy opening, which ensures perfect preservation of the joint pattern.

High quality of materials

All components of our inspection doors are made of high-quality galvanized steel sheet, which is laser-cut and then bent on a press brake. The door leaves of solid plasterboard are designed for smooth and easy operation even after the tiling is glued on. The smooth operation of the leaf is possible thanks to lapped dural bushings.

The door leaf is made of a waterproof plasterboard panel meeting fire-protection standards, which allows it to be placed even in environments with a higher risk of water load.

We meet the strict requirements of ČSN 730810, including EI30, EW60, DP1, which guarantees not only safety but also the long-term durability and reliability of our inspection doors.

Aesthetic joint solution

To achieve a visually unified appearance, we offer trims in various shades that perfectly match the colors of your grout. In this way we ensure that the joints between the door and the wall blend in with the overall interior design.

Long service life and trouble-free use

Thanks to the use of high-quality materials and innovative technologies, we guarantee a long service life of our inspection doors and their trouble-free functionality. Our doors differ from the usual solutions on the market and bring not only a practical but also an aesthetic inspection door solution to your home.

How does it work?

The basis of our invisible inspection doors is a specially improved double hinge, protected by a European patent. This system allows the door to slide out in front of the wall and then open smoothly, which ensures easy access to inspection spaces without disrupting the design of your interior.

For this reason, it is necessary to allow for a structural opening depth of 100 mm on the hinge side. Without this preparation, the door cannot be installed.