IKEA PAX No-Screw-Regalboden-Halter

IKEA PAX Shelf Supports (Screwless)

A familiar problem—disassemble and reassemble your IKEA furniture, and at least one shelf support is broken.

You could raid the spare parts section of any IKEA store OR simply print new supports—saving time, fuel, and providing a convenient way to use up leftover filament.
 

For clothing, these screwless supports are perfectly adequate; simply insert them into the designated holes and place the shelf on top.
For heavier items, it is advisable to either increase the wall thickness or use another user's version with screws.

In an initial load test, 5kg were easily supported with Bambu PLA Basic—using 2x wall lines and 20% infill (6 supports per shelf)