I made these to be able to get full usage of the larger Essve boxes. Make 2 pieces 2x2 for the 3x2 and 3 for the the 4x2.
Even tough you can piece 2 2x2 together, I can't recommend using that. It will not be fixed in the box.
If you want to print the larger boxes ones I highly recommend these STLs.
Larger Essve Box from Torkild:
https://www.printables.com/model/925104-bigger-box-inserts-for-essve-essbox
Assorted Essve Boxes From Johan:
https://www.printables.com/model/420836-box-for-screws-fits-essve-essbox
The author marked this model as their own original creation.