ᐅ Using a Kallax as a Workbench – Load-Bearing Capacity for Heavy Tools?

Created on: 5 May 2023 08:23
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Gebhardfl8
Hello everyone, I’m currently considering using an Ikea Kallax shelf as a workbench. More specifically, I’m wondering how sturdy a Kallax really is when placing relatively heavy equipment on it, such as a sewing machine, possibly a small lathe, or even a larger printer.

Does anyone have experience with how stable the shelf is as a tabletop? I’m particularly interested in whether the structure can reliably support the weight without warping or becoming unstable – even with somewhat dynamic use, like when working more forcefully.

Does anyone have tips for reinforcement or know of potential weak points? I want to avoid unnecessary damage while creating a cozy, practical crafting setup. Thanks in advance for your feedback!
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Paunon
5 May 2023 10:27
At 20-30 kg (44-66 lbs) and with dynamic use, the Kallax alone is not sufficient. Metal brackets on the sides and a thick wood board on top improve stability. For the countertop, I recommend multiplex plywood with a thickness of 18-22 mm (0.7-0.9 inches). This distributes loads well and is durable.
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barle
5 May 2023 10:32
Yes, a plywood panel on top along with brackets and screws on the sides. That will hold securely without any issues. The original part from Kallax is not suitable as a surface for this purpose.
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parnar
5 May 2023 10:44
That’s brilliant! 🙂 I’m working on a Kallax DIY project too and simply used a thick plywood board. I screwed metal brackets to the inside edges – this adds real stability and even looks nice!

Tip: Use screws with large heads to prevent them from pulling through. And enjoy a super flexible setup!!
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reni45
5 May 2023 11:05
As barle already mentioned, without reinforcement the load is too high. A plywood board, brackets, and sturdy screws are sufficient. It is important to position the brackets correctly to prevent any wobbling.
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Danial
5 May 2023 12:38
Gebhardfl8 schrieb:
I also want to handle some force – at least occasionally.

This is a crucial point. Dynamic loads can easily damage MDF boards if there is no reinforcement. While MDF is sturdy, it is brittle under impact stresses.

Therefore, it is clear: it is best to use a stable plywood or beech wood board at least 20 mm (0.8 inches) thick. Attach it with appropriately strong screws and metal brackets on multiple sides. Additionally, an extra central support can help prevent bending.
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Timmyse36
5 May 2023 13:12
Thanks to everyone for the tips! It’s reassuring to know that with a few targeted reinforcements, you can really upgrade the Kallax as a craft table. I approached the problem cautiously because I was afraid of ending up with a mess if something collapsed ;-)

Gebhardfl8, feel free to get back to us once you’ve tried it. Real-world experience sharing in cases like this is invaluable!