ᐅ KALLAX as a Kitchen Island – Potential Issues During Renovation?

I would like to add that, Delia, when deciding between a DIY construction and a ready-made kitchen island, you should also consider the time and costs involved. Often, the cost and time required for such renovations are underestimated due to overly optimistic expectations. For example, a complete seal with epoxy resin can be expensive and labor-intensive if the result is meant to be durable. If you prefer modular furniture, there are systems specifically designed for kitchens that already offer higher moisture and load resistance. This saves time and hassle in the long run during renovations and everyday use. I would also like to emphasize the point from

Surela schrieb:
How exactly do you envision the use? Do you want a sink, stove, or just a work surface?

before discussing specific materials and steps.

For electrical wiring: Route cables along external cable trays, do not drill holes in shelf components. Stability: Install frames made of angle profiles under the shelves. Water: Seal and create a gap from the floor.

Hello Delia, I also built a kitchen island using KALLAX units, but I only use it as a work and storage surface, without water connections or a stove. It was important to me to cover all surfaces with a clear plastic sheet that protects the surface and can be cleaned easily. Additionally, I placed the shelf directly on small adjustable feet to keep moisture away from the floor. The cables for lighting run along the outside, not under the countertop. I would recommend realistically assessing the load it will need to bear – for heavy use like cutting or cooking, KALLAX units are rather unsuitable.

Thank you in advance for the many helpful and sometimes very detailed responses! To address questions from

Surela schrieb:
How exactly do you envision the use? Do you want a sink, stove, or just workspace?

and

Danial schrieb:
before discussing the specific materials and steps.

: I actually planned just a pure workspace and storage, no sink or cooktops on the KALLAX. The water connections will remain at the existing main unit. However, a small power outlet for chargers and possibly an induction cooktop is to be installed for use. Stability and load capacity are therefore still important, for example for cutting and placing pots. Your input on sealing and reinforcements sounds reasonable—are there any specific products that are particularly suitable? And what would be the best technical approach to the conversion to meet these requirements?

Thank you for the detailed response, Delia. When it comes to a simple work surface without a water connection, the situation becomes somewhat easier. However, I would still recommend choosing a sturdy plywood board (at least 18 mm, preferably 21 mm) for the top work surface, cut to size. This is more durable than the thinner KALLAX shelves and more resistant to point loads and moisture when properly treated. For sealing, you can use a PU-based wood oil, which penetrates deeply and forms a water-repellent layer. Alternatively, a two-component PU varnish is an option, which is particularly durable but can be more challenging to apply.

For stability: In addition to securing the work surface with wood screws, it’s advisable to install sturdy steel angle brackets inside the KALLAX units that connect the modules lengthwise. This prevents wobbling and increases load capacity. For the electrical outlet, flush-mount boxes are suitable, which you can install directly on the work surface, for example on its front edge. If there are no integrated cable channels, route the cables along the back edge and secure them with cable ties or clips.

I would also recommend replacing the feet under the modules with adjustable furniture feet to compensate for uneven floors and reduce contact with the ground. If you need more detailed information on materials or sources, I’m happy to gather some recommendations for you.

Nicely summarized, Surela! Delia, as mentioned before: For a purely work surface without a water connection, the KALLAX can be used well if the top is properly protected. Another tip: When placing the countertop on the KALLAX, a thin rubber mat or felt between the countertop and the shelving unit can help prevent surface damage while also compensating for minor unevenness. Additionally, this material prevents slipping. When screwing in, be careful not to drill too deep into the KALLAX walls, as they can splinter. Regarding power outlets: USB charging stations with a low profile save space and can be integrated into furniture, which could work well for your island. If you like, I can send you specific product recommendations suitable for DIY projects.