Simple rack foot

As the garage floor slopes slightly, the shelf was slightly tilted.

This is not a replacement, it's an extension for the already existing one.

Size it around for your needs.

Edit:
Info: The OpenSCAD is generated by Gemini Pro 3. So you can easily resize it for your own needs. Instead, to scale it up/down in your slicer.

Outer length is: ca 55mmx55mm.
Inner length: 47x47mm
(because of rounded corners, slightly smaller than in the drawing)
Inner height: 7mm
height with rim: 10mm