ᐅ Who has retrofitted metal floor supports for KALLAX?

Hello everyone,

I am currently looking into upgrading my IKEA KALLAX shelves and considering adding metal shelf supports to increase stability and give the design a more industrial look. My question is quite specific: Has anyone had experience retrofitting metal shelf supports for KALLAX shelves? I am particularly interested in the installation process, everyday durability, and any compatibility issues with the KALLAX inserts. Are there recommendations for specific manufacturers or models? Are there challenges or pitfalls that should definitely be avoided?

I look forward to your feedback and tips!

I can contribute some information about retrofitting metal floor supports for the KALLAX. It is important to know that IKEA does not officially offer these specific supports in metal, so you have to rely on third-party suppliers or custom solutions.

Installation usually works by attaching suitable angle brackets to the bottom of the KALLAX units. It is important to use strong steel and appropriate screws to ensure optimal stability. Also, keep in mind that the KALLAX side panels are relatively thin, so you should not expect them to bear very heavy loads.

If the unit needs to support a lot of weight or heavy use, an additional intermediate shelf combined with metal supports can be helpful. Some users have reported positive effects from using rust protection on the metal profiles.

I retrofitted metal floor supports in the KALLAX unit. Important: use screws of the appropriate length to avoid damaging the wood. Otherwise, it holds up well and looks sturdy.

Honestly, I think the whole hype around metal floor supports for KALLAX is a bit overrated. The shelf isn’t designed to be a super sturdy heavy-duty piece of furniture. It might be better to consider using a shelving unit that’s built for heavy loads instead of going through the trouble of retrofitting.

JONSON schrieb:
Assembly usually works by screwing suitable angle brackets to the bottom of the KALLAX units.

That’s exactly the problem – adding metal brackets doesn’t really add much value if the rest of the structure can’t handle the load. Just my opinion.

To provide a well-informed assessment: KALLAX shelves are made of MDF boards with a melamine coating, and the support surfaces for the shelves are designed for the included wooden supports. The original shelf supports combine small metal clips with wooden slats, allowing a load capacity of about 13 kg per shelf.

Metal shelf supports as an aftermarket upgrade generally increase flexibility and can improve load capacity but require careful installation. Important: The supports should be screwed into solid, load-bearing areas; the load is unfortunately not widely distributed. Screw connections on thin edges provide less stability.

Recommendation: Use U-profiles or L-brackets made of galvanized steel, with as large support surfaces as possible. Some users make their own supports because there are hardly any ready-made solutions specifically for KALLAX.

A few months ago, I used metal brackets that I found at a hardware store. It is important to securely fasten the supports with appropriate anchors, and if possible, also use the back panel for additional stabilization.