ᐅ KALLAX used as a room divider on a platform is unstable – how can this be fixed?

Hello everyone,

I recently bought a KALLAX shelving unit from Ikea to use as a room divider in my living room. To make it stand out visually, I placed it on a small platform about 10 cm (4 inches) high. However, I noticed that the shelving unit is surprisingly unstable on the platform; it wobbles noticeably, and I’m concerned it might tip over if loaded or pushed lightly.

My question is: What are some ways to improve the stability of a KALLAX shelving unit standing on a platform as a room divider? Specifically, I’m interested in how to prevent sideways or tipping wobble without fastening it too rigidly or affecting its appearance. Does anyone have experience with special anchors, anti-slip materials, or other methods to securely and permanently stabilize a KALLAX on a platform?

I’m looking forward to your tips and clever solutions!

Hi,

small non-slip mats placed between the platform and the shelf often help. Alternatively, you can fix the shelf to the edge of the platform from the inside using brackets, which adds stability without visible screws on the outside.

Enisken schrieb:
What options are there to improve the stability of a KALLAX shelf unit standing on a platform as a room divider? Specifically, I’m interested in how to prevent sideways or tipping wobble without overly screwing the unit in or affecting its appearance.

This is a very interesting question that cleverly addresses the stability issue of free-standing furniture on platforms. Generally, the KALLAX shelf is quite stable on level floors, but on a platform, small unevenness, material flexibility, and the raised center of gravity can make the problem worse.

My advice is to first align the shelf as precisely as possible—use a spirit level and adjustment tools to eliminate any uneven contact points. After that, you can apply permanently elastic sealing strips or foam rubber strips at the contact surfaces. These help distribute pressure and reduce minor irregularities.

I also recommend securing the shelf from the inside with so-called “L-brackets” fixed to the platform. Small screws should be used here, either screwed into the back panel of the shelf unit or the platform’s base, paying close attention to the acrylic wood or the material thickness of the platform.

If you want to avoid anchoring, a combination of thin, non-slip pads with adhesive backing (e.g., rubber) and weight stabilization—for example, by loading the shelves with heavy items—can be effective. You can also use special furniture stoppers fixed at the platform edge to prevent tipping.

One more question: What are the exact dimensions of your platform, and what material is it made of? The surface and construction method play a major role regarding adhesion and fixing options.

I would like to add: Use small rubber pads, like those available for furniture feet. They are hardly visible and work well to prevent slipping.

leebi7 schrieb:
My advice is to first align the shelf as precisely as possible—use a spirit level and make adjustments to eliminate any uneven surfaces.

This is essential. If you want to maximize stability when using it as a room divider, it’s worthwhile to design the base so the shelf lies flat—small height differences are often the cause of unwanted wobbling.

Additionally, I recommend using clamp or tension profiles on the back of the KALLAX that you can attach under the base. This functions like an invisible clamp that grips between the shelf and the base, effectively preventing lateral movement and is reversible.

If you don’t want a permanent fixing, special self-adhesive metal plates combined with strong neodymium magnets offer an exceptional solution, provided that the KALLAX and base include steel or magnetically responsive anchors.

What material is the base made of? Wood, MDF, OSB, or something else?

Thanks in advance to everyone for the first helpful suggestions!

leebi7 schrieb:
How big exactly is your platform, and what material is it made of?

The platform measures 150 x 80 cm (59 x 31 inches) and is about 10 cm (4 inches) high. It consists of a simple 18 mm (0.7 inch) thick MDF board resting on four sturdy wooden blocks. The surface is painted, which creates a smooth, somewhat slippery base.

FAZAR schrieb:
Use clamp or tension profiles at the back of the KALLAX that you can clamp under the platform. A kind of invisible clip that essentially grips between the shelf and the platform.

That sounds interesting, could you please explain in more detail? How could such a construction be best implemented without ruining the appearance or complicating the setup?

The idea of using neodymium magnets sounds exciting, but I doubt my MDF and the KALLAX are suitable for that. The shelf itself is the standard KALLAX with particleboard and plastic edges.