ᐅ KALLAX on carpet is uneven – need help!

Hello everyone,

I have a KALLAX shelving unit from IKEA that stands on a regular carpeted floor. Unfortunately, the shelf is not completely level; it leans slightly and wobbles a bit, even though I assembled it exactly according to the instructions. I suspect the soft carpet might be the cause, perhaps it compresses unevenly or the shelf warps because of it?

I wanted to ask if anyone has had similar experiences and how to best address this issue. Are there specific pads or solutions that help the KALLAX stand stable and straight despite being on carpet?

Maybe there are also tips on how to safely level the shelf without damaging the furniture or the carpet. I’ve already considered adjustable feet, but I haven’t found much concrete information online.

I would really appreciate practical advice and shared experiences!

Use small washers or hard plastic furniture glides under the legs; this often helps immediately with carpet. You should also be able to install adjustable feet if your KALLAX allows for them.

The KALLAX shelf unit does not come with adjustable feet by default. However, you can add special furniture castors or threaded furniture feet to compensate for uneven floors. On carpeted floors, it is common for furniture to wobble slightly because the surface is soft.

A simple and effective solution is to use flat furniture glides made of hard plastic, which prevent sinking into the carpet and provide a stable base. At the same time, they distribute weight more evenly. Alternatively, plastic or wooden boards can be used as a foundation.

Avoid using simple cardboard or paper pads, as they are not load-bearing.

I know that well! My KALLAX shelf also stood slightly uneven on the carpet, which really bothered me. I ended up using small felt pads, which are actually meant to protect the floor, but in my case, they helped to even out the unevenness.

It’s also important to make sure the shelf is properly assembled and that no screws are loose. I also found it helpful to secure the shelf to the wall, as this provides extra stability and prevents wobbling, even if the carpet makes it harder to stand firmly.

Maybe this will help you too!

In summary, the KALLAX shelving unit tends to have stability issues on soft carpet flooring if used without modified supports or feet.

It is recommended to use:

• Durable plastic furniture glides to minimize sinking
• Optionally retrofitted, height-adjustable furniture feet with threaded fittings
• Additional securing by wall mounting to prevent tipping

Furthermore, it is essential to check that the unit is properly and securely assembled to rule out any pre-existing mechanical deformation. This ensures the best possible stability under the given conditions.

vincent46 schrieb:
It is also important that the shelf is assembled perfectly straight and that no screws are loose.

That’s a good point, thanks! I double-checked the shelf today; all the screws are tight, and it stands perfectly level on a hard floor outside of the carpet. This really puzzles me why it wobbles so much on the carpet.

Lorukeo schrieb:
A simple and effective solution is flat plastic furniture glides

I will get some of those furniture glides and give them a try. Is there a recommended diameter or material that works best? And what is the best way to attach them under the legs without damaging the shelf?

liskar schrieb:
Additionally, checking for correct and solid assembly is mandatory

Thanks also for the summary; it confirms a lot of what I planned to try.