Metal rack foot

I have an older steel IKEA rack, which has just steel profiles touching the floor as "feet". Since I don't like the idea of plain metal scratching over my floor and also I wanted to increase the clearance of the racks (so my robo vacuum can clean under the racks), I constructed the plastic feet. A drop of hot glue (or any other glue) will keep them in place - I am not moving those racks around, after all.

I printed with PLA and 100% infill (to counter the fact that the entire weight of the rack will be applied to these plastic feet). Industrial-grade materials might produce satisfactory results with lower infill grades, but I never tried them, so feel free to writ eabout your experience with them!

Also including my Fusion 360 design, it is entirely parametric, so you can adjust to your needs.

Pro tip: if your floor is not horizontal and you want to compensate that - you can print these "horseshoes" with different heights.