ᐅ Placing Kallax shelves horizontally – does it make the inserts less stable?

Hello everyone, I am planning to lay my Kallax shelf on its side, meaning to rotate the modules so they stand horizontally instead of vertically. I am not entirely sure how this will affect the stability of the included inserts. The stabilizers or frames are originally designed for vertical orientation. My specific question is: do the inserts wobble more, or are they less stable, when the shelf is used this way? And if so, are there any tips or experiences on how to reduce the wobbling? I have already read quite a bit, but I haven’t found a clear answer or well-founded experience yet. I would be very grateful for any firsthand experiences.

That’s brilliant that you want to place the shelf horizontally! 🙂 I have tried it myself and can only say: yes, the inserts do wobble a bit more than in the usual vertical position because the attachment on the side panels is not quite as stable when laid horizontally. This is simply due to the design of the Kallax, which is tailored for standing upright!

But don’t worry, there are a few simple tricks: I attached small self-adhesive foam strips to the contact surfaces, which greatly reduces the wobbling and makes the insert fit very securely! You can also try gently pressing the inserts against the back panel to fix them in place – that adds even more stability. I’d be happy if you share how it works out for you!

The desire to use a Kallax shelf horizontally is understandable, but it’s important to note that the furniture is designed primarily for vertical use. The grooves for the inserts and their fit are mainly intended to support the load in that orientation.

Regarding the wobbling of the inserts: yes, the inserts don’t fit as tightly when the shelf is placed horizontally because the securing mechanism usually relies on the side construction, which functions differently when positioned this way.

To improve stability, I recommend adding thin rubber or felt strips to the contact surfaces of the inserts to increase friction. It is also important to ensure that the shelf is placed on a level and stable floor to prevent unwanted movement. These are the most effective steps to minimize wobbling.

Interesting question you’ve raised.

nedagla schrieb:
The inserts tend to wobble a bit more because the fastening is less stable when placed sideways.

In my experience, that is generally true, but I wouldn’t attribute it solely to the design. The stability of the inserts also depends heavily on material quality and possible manufacturing tolerances. Sometimes an insert fits very tightly even when placed sideways in a Kallax shelf, if everything is well made.

What I find even more relevant is how much the wobbling affects actual use: on a horizontal surface, other forces come into play, for example when pulling out or putting pressure on the insert.

Therefore, I would recommend carefully considering how often and how heavily you plan to use the inserts before making modifications. For permanent loads, additional fastening is advisable, such as small brackets or screws, if you don’t want to keep the furniture in its original state.

Using only rubber or foam padding at contact points can reduce wobbling, but it won’t solve the structural issue in the long run. For durability and safety, I advise mechanical aids, especially if the shelf is used differently than originally intended.