ᐅ Outward Bowed Doors on the KALLAX – Can They Be Straightened Again?

Hello everyone,

I recently bought a KALLAX shelving unit from IKEA and noticed that the doors—at least on my model—are slightly bowed outward when closed. The issue is that the doors don’t always sit flush with the frame and look somewhat uneven.

My question to the community: Is it advisable or recommended to try bending these doors back to make them as straight and flush as possible with the KALLAX unit? Or could bending them back cause issues, such as material damage, cracks in the plastic, or problems with the hinges?

Perhaps someone here has had similar experiences and can share how best to address this minor warping of the KALLAX doors.

Thank you in advance for your advice and insights!

nomagu schrieb:
Is it sensible or advisable to bend these doors back to make them as straight and flush with the KALLAX shelf as possible?

Hello nomagu,

basically, you can say that doors made of plastic or coated materials are often quite sensitive to deformation. If the KALLAX doors are made of plastic, you should be cautious with applying too much force, as cracks or permanent distortions might occur.

In some cases, simply leaving the doors in a warm room for a few days or gently softening them with heat (for example, using a hairdryer at moderate temperature) can make them more flexible before trying to reshape them.

Personally, I would first try to identify the exact cause of the bending: Is it due to storage, humidity, or possibly the material itself? Sometimes this helps avoid lasting damage.

If you do want to try adjusting them manually, always proceed very carefully and gradually – preferably not in cold conditions, as the material tends to be more brittle then.

I hope this helps as an initial suggestion!

Kinbu schrieb:
Plastic or coated doors are often quite sensitive to warping.

I would like to add something, especially regarding the KALLAX system with its typical doors. These doors are often made from MDF boards with a melamine or foil coating, which makes the material stable but somewhat inflexible.

If the doors bow outward, there can be several causes: on the one hand, moisture absorption in the material—even if it is coated—and on the other hand, excessive stress from the fittings or incorrect installation.

Regarding bending them back: this should only be done if you are certain the material is not brittle. Warming is an option, but be careful because too much heat can damage the foil or cause bubbles.

My suggestion is a two-step approach:

1. Remove the door and check whether the deformation is actually in the door panel itself or caused by hinges or installation.

2. If the door panel is warped, try to gently return it to its correct shape, for example using gloves and without force. Make sure to support the inside while bending to avoid cracks.

3. Then store the door under light pressure for a few hours or days to help stabilize the shape.

If you can describe the situation more precisely (material, degree of warping), I can provide more targeted advice.

From my experience: avoid using too much force, as that could cause further damage.

Feel free to ask if you need more details!

Domau0 schrieb:
If the doors bend outward, this can have several causes.

If I were you, I would first check the hinges. Often, realigning them helps more than bending the doors themselves. Doors that are bowed outward can usually be straightened by adjusting the hinges.

If it is truly material deformation, gently warm the door and then carefully bend it back into shape. Secure it in place until it holds. Avoid using force.

If the gap remains too large, it is better to use self-adhesive weatherstripping rather than applying too much pressure on the door.