This Gridfinity spacer is a modified version of the Ikea Eket Gridfinity Baseplate, designed for fitting in an Ikea Eket drawer.

In my setup, I place it at the front for easier access to the back, though it works in either position. I haven’t printed this myself yet, as it was a user request—feel free to share your results if you try it out!

For a perfect fit, some sanding may be needed if your printer struggles with tight tolerances or your drawer isn't fully symmetrical.