ᐅ Is screwing multiple Kallax units together a permanently stable solution?
Created on: 26 Oct 2022 09:13
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Erwanmi
Hello everyone,
I am currently wondering whether screwing together multiple Ikea Kallax units can create a long-term stable structure. Specifically, I am interested in whether fastening them through the side panels or using special connectors can secure the units firmly enough so that they do not develop weak points or come apart over time, even with regular use (for example, when storing heavier items). I am interested in both practical experiences with these types of connections and advice on any potential weak spots to watch out for during assembly.
Thanks for your opinions and tips!
I am currently wondering whether screwing together multiple Ikea Kallax units can create a long-term stable structure. Specifically, I am interested in whether fastening them through the side panels or using special connectors can secure the units firmly enough so that they do not develop weak points or come apart over time, even with regular use (for example, when storing heavier items). I am interested in both practical experiences with these types of connections and advice on any potential weak spots to watch out for during assembly.
Thanks for your opinions and tips!
Hello, I’d like to share my experience as well! 🙂
Some time ago, I screwed together four Kallax units to create a large shelving system, using wood connectors and screws. Important: it’s best to connect them from the inside, so you don’t constantly affect the appearance.
I also used small angle brackets on the back corners because the side panels alone aren’t very stable against tipping.
The system holds up great, even though the units come from different production batches. It’s crucial that the units are assembled on a level surface, then the whole setup stays really stable for years!
So: definitely screw them together, but also use brackets and connectors for support — that ensures it will last! 🙂
Some time ago, I screwed together four Kallax units to create a large shelving system, using wood connectors and screws. Important: it’s best to connect them from the inside, so you don’t constantly affect the appearance.
I also used small angle brackets on the back corners because the side panels alone aren’t very stable against tipping.
The system holds up great, even though the units come from different production batches. It’s crucial that the units are assembled on a level surface, then the whole setup stays really stable for years!
So: definitely screw them together, but also use brackets and connectors for support — that ensures it will last! 🙂
Josefane schrieb:
I wonder: Which screws are used exactly?Thanks for asking, this is indeed an important point. So far, I have used common chipboard screws with a diameter of 4mm (0.16 inches) and a length of about 40mm (1.6 inches), pre-drilled with a 3mm (0.12 inches) drill bit.
pikin schrieb:
In addition to classic screwing, using metal brackets or connectors specifically designed for furniture is recommendedThat sounds interesting—I have so far just screwed simple screws directly through the side panels without additional brackets. The suggestion to use brackets makes sense to increase stability.
Are there particular types of brackets or connector methods you would especially recommend for Kallax modules? I would like to achieve a solution that is as sturdy and discreet as possible.
I completely understand that stability is important to you. Kallax is reasonably sturdy for the price, but it’s not designed as a heavy-duty wooden furniture piece. I once tried to screw two modules together from the outside without brackets – after a few months, the screws loosened and small cracks appeared in the material.
I can only agree! Adding metal brackets distributes the load much better and prevents localized stress damage.
If you don’t want screws to be visible, flat brackets or connector fittings are a good solution. They are barely visible from the inside and work excellently.
I wish you the best of luck with your project!
bauku schrieb:
I attached strong metal brackets to the inside of the side panels, and that really makes a difference.
I can only agree! Adding metal brackets distributes the load much better and prevents localized stress damage.
If you don’t want screws to be visible, flat brackets or connector fittings are a good solution. They are barely visible from the inside and work excellently.
I wish you the best of luck with your project!
Erwanmi schrieb:
Are there specific types of brackets or joint methods you would particularly recommend for Kallax modules?Regarding load-bearing capacity, I would avoid using overly delicate brackets – I recommend sturdy steel brackets with a length of at least 40 mm (1.5 inches) on both sides. Optionally, larger flat connectors or furniture connectors (e.g., cam locks) can also be used. However, you should check whether the thickness of the Kallax panels is suitable to prevent the fittings from sinking in.
For a less visible option, simple wooden dowels and glue can provide additional stability, but this method is less reversible.
The fact is, a combination of screws and metal brackets provides the necessary stability, especially for shelves that are used repeatedly and carry weight.
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