I couldn’t find any good IKEA Skadis holders designed for speed squares in my size.
 

This holder fits speed squares with a base width of up to 30mm and a height of 10mm.
 

I printed mine in PETG, but PLA should work just as well.

Make sure to use supports, and it’s recommended to position the print in the orientation shown in the Bambu Studio screenshot. This ensures better vertical strength for the grips. The grips fit nice and snug.

This is my first published print - feedback is welcome, and hopefully I learn something  from it!