ᐅ Is it possible to convert the Kallax into a built-in cabinet?

Hello everyone,

I am currently considering whether the popular IKEA Kallax shelving unit can be modified to be used as a built-in cabinet in a niche or wall opening. Specifically, I am interested in which structural adjustments are necessary to install the Kallax securely and precisely without losing its functionality.

Does anyone have experience with this or can offer tips on fastening, surface treatment, or possible modifications? I am also concerned about aspects such as load-bearing capacity, potential reinforcements, and the possible integration of doors or sliding doors.

Thank you in advance!

Yes, the Kallax can definitely be installed. It is important to securely fix the shelving unit to the wall, preferably using brackets or special fasteners. For doors, you can attach simple hinges or use Kallax doors from IKEA that fit perfectly.

Hello Lisfra,

I have previously built the Kallax into a niche myself. Here is a brief overview of how I approached it:

1. Preparing the niche: It is best to tailor it precisely to the measurements; uneven spots can be evened out with wooden battens.
2. Fixing: I used angled metal brackets, which I screwed to both the frame and the wall. This keeps the unit stable and prevents it from shifting.
3. Doors: There are special Kallax doors that can be attached with matching hinges. Alternatively, sliding doors can be retrofitted, but this requires more effort.
4. Reinforcement: If the shelf unit will be very tall, it is worth adding a back panel or braces.

Common mistakes are inaccurate measurements or insufficient wall fixing, which significantly impacts stability.

Good luck!

teyosef schrieb:
If the shelf is going to be very tall, an additional back panel or braces are worthwhile.

This is a very important tip. I once built the Kallax as a built-in cabinet spanning an entire wall height. In this case, it is advisable to cut out the back panel and install a custom-made plywood back panel, which is fixed to the side walls of the built-in unit.

Also, you should definitely make sure that the base board is stable and level – this is often an issue in older houses. If the surface is uneven, it can negatively affect the entire built-in cabinet.

An additional suggestion: When installing in openings intended for doors, I usually use so-called Blum hinges, which allow concealed mounting and ensure the door closes precisely.

What are the dimensions of your niche? That plays a major role in the feasibility of the conversion.

Palenar schrieb:
What are the dimensions of your niche?

Thanks for the detailed post! The niche is approximately 180 cm (71 inches) wide, 45 cm (18 inches) deep, and 220 cm (87 inches) high. Originally, I considered placing two Kallax units side by side, either arranged 4x2 or 2x4. However, I’m not sure if I can achieve a stable unit by connecting and fastening them, or how best to approach fastening given the height.

Technically, converting a Kallax unit into a built-in cabinet is possible, but it requires precise planning. With a height of 220 cm (87 inches), two Kallax shelves stacked on top of each other are suitable, and the separation should be secured with a stable connection – for example, a wooden board or metal connectors.

For wall mounting, use anchors appropriate for the wall type (e.g., concrete, drywall). For optimal stability, at least three fixing points per shelf should be used.

Additionally, a custom-made back panel is recommended, serving simultaneously as a locking and reinforcing element. Doors can be installed as either overlay or inset elements, and the hinges must be designed for the shelf thickness.

I recommend carefully checking the load capacity, especially for taller constructions with multiple shelves stacked on top of each other.