ᐅ KALLAX Edges Rounded – Any DIY Tips?

Created on: 25 Jan 2023 08:37
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rapeba
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rapeba
25 Jan 2023 08:37
Hello everyone,

I’m planning to upgrade my IKEA KALLAX shelving unit a bit, focusing mainly on the rather sharp edges. My main concern is whether anyone has experience or concrete DIY tips on how to round off the edges of a KALLAX in the best way, without compromising stability or appearance. I have considered sandpaper or small rounding cutters, but I’m looking for more sustainable solutions that can be done with simple tools—ideally something that can be easily repeated if I move or rearrange the shelf.

Maybe someone has tried to soften the KALLAX edges using materials like wood or plastic, without damaging the shelf or leaving unsightly marks. It would also be important to know whether the edges should be sealed or protected afterwards.

How do you handle this? Does anyone have special tools or techniques that work well? I would appreciate tips as well as warnings in case this could be counterproductive.

Looking forward to your replies!
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SANMAR
25 Jan 2023 09:14
Hey rapeba,

I completely understand your concerns about sharp edges—especially when there are children or pets in the house, it’s definitely a tricky issue.

At my place, I tried smoothing the edges with fine sandpaper, but in the beginning, I was unsure if I was removing too much material. Still, after several sanding passes and a good fine finish, I managed to nicely round the edges.
rapeba schrieb:
How do you handle this? Does anyone have special tools or techniques that work well?

Personally, I use a small orbital sander and then very fine sandpaper (220 grit and finer) for the finish.

It was important for me to apply a sealant afterward; otherwise, those spots wear out quickly or feel rough. A clear furniture oil or wood sealer protected the surface and kept the rounded look well preserved.

If you’re uncomfortable with sanding, you can also try rounded edge protectors made of soft plastic or rubber that can be applied afterward—they’re not quite as elegant as a nicely sanded edge, though.

Does your shelf get heavy use or is it more decorative? In my opinion, that really influences which method to choose 🙂
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FeAndreas1
25 Jan 2023 11:03
Hello rapeba,

Very interesting topic! I can relate to this well and would like to respond in a more technical way because the choice of methods largely depends on your tools and your expectations for the result.

First of all: The KALLAX edges are often only covered with melamine-coated particleboard, so they are sensitive to mechanical processing such as aggressive sanding or routing. If you want to round the edges, a round-over router bit is a good choice, but you should use one with a very small radius, for example 3-5 mm (0.12-0.2 inches), to avoid extensively exposing the veneer.

Alternatively, you can go the manual route with sandpaper and a sanding block, gradually working through different grits from 120 to 320. It’s best to use a sanding block to apply even pressure.

It is very important to apply a sealant afterwards to ensure moisture protection and abrasion resistance. A clear polyurethane varnish or a colorless furniture wax can help here.
SANMAR schrieb:
Personally, I use a small random orbit sander for this kind of work and then very fine sandpaper (grit 220 and finer) for the finish.

The idea of using a random orbit sander is good, but be careful – the coating on KALLAX can be easily damaged if you don’t work evenly.

I would like to know: Do you want the edges to be visibly rounded, or just make them more comfortable to touch? That helps a lot in choosing the right method.

Also, it would be interesting to know if you want to save working time or if this is a project that needs to be perfect – the latter requires a different approach.
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chen67
25 Jan 2023 14:52
Hi rapeba and everyone 🙂

I think it’s great that you’re putting so much thought into making the shelf both nicer and safer! I had a similar project and started with a simple trick just for fun: I carefully chamfered the edges with a fine nail file – it might sound unusual, but it worked really well for small areas and didn’t require any power tools.
FeAndreas1 schrieb:
Do you want to visibly round off the edges or just make them more comfortable to touch?

Exactly, that’s an important distinction. I didn’t want to change my KALLAX edges visually, but rather make them more pleasantly smooth to the touch. That’s why I used a nail file and then applied some furniture polish.

Of course, this isn’t suitable for large surfaces, but sometimes a small adjustment is enough for everyday comfort 🙂

If you plan to use power sanding, I’d be careful, as it can easily lead to uneven results. IKEA melamine can be a bit tricky, and imperfections show quickly.

Looking forward to more tips! 🙂
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Tobias
26 Jan 2023 07:46
Hi,

I recommend using a round-over router bit with a small ball bearing guide for the KALLAX edges. This will allow you to finish the edges cleanly and evenly. Afterwards, apply a clear varnish to seal them.

Hand sanding is also possible but more time-consuming and less precise.

Best regards
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Tevin
27 Jan 2023 10:15
Hello everyone,

I’d like to share my experience as well: I switched to finishing my KALLAX edges using masking tape and sanding. First, I carefully tape off the surrounding surfaces to avoid scratches. Then I start sanding with coarse grit sandpaper (100), rounding the edge slightly, and gradually work my way up to 240 grit.
rapeba schrieb:
I have considered sandpaper or small rounding bits, but I’m looking for more sustainable solutions that can be done with simple tools

I also think it’s important to apply a protective oil or clear varnish to the treated edges – I use a clear, water-based protective lacquer suitable for furniture. It looks good and is child-friendly.

One more tip: if you want the edges to appear a little thicker, you can use self-adhesive edge strips made of wood veneer. They look decorative and provide extra protection.

Another option that works well is flexible plastic edge profiles that can be glued on – less effort, but they have more of a "tool-like" appearance.

I hope this helps!