IKEA Kaustby Chair Seat Mount, 3D Printed Home Decor

Design preview. Rendered from the file, not a photo.

The maker says it fits: IKEA Kaustby chair. See the proof

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What it does

Replaces worn or broken seat mount so your chair sits level and stable again
3D printed on demand just for you, so you skip waiting for shipping from overseas
Fits IKEA Kaustby chairs perfectly, so you keep using furniture you already own
Custom-made part arrives ready to install, so you save money versus buying a new chair

Your IKEA Kaustby chair can work like new again. The seat mount is the hidden piece that holds everything together, and when it cracks or breaks, the whole chair feels wobbly and unsafe. This 3D-printed replacement part brings back that solid, trusted feel.

We print this part fresh for you using the original design from the maker community. It fits the Kaustby chair frame exactly and installs in minutes with basic tools. No special skills needed, just a screwdriver and a few minutes of your time.

Order this part today, and you extend the life of furniture you love. Your chair gets a second chance, and you keep one less thing out of the landfill.

528 downloads in the maker community. That is interest in the design on the site it came from, not our sales.

What it fits

The maker says it fits: IKEA Kaustby chair

That is the maker's word, not a fit we measured. Check the size below against your own.

IKEA Kaustby chairFrom the maker's own listing notes, checked 2026-08-13. See the original post

Brand names here only say what this part fits. We are not connected to those companies, and they did not make or check this part.

What you get

This design prints as one piece.
Nothing else to print or buy for this to work.

What it is made of

Designs like this print well in PLA. Compare the materials.

Printed plastic is strong for its size, but it is not metal. We have not load tested this design, so we do not publish a weight rating. Keep it out of a hot car and away from open flame.