All my solder rolls are 30mm wide and have 20mm hole, so this holder has room for 32mm wide roll and stub diameter is 19mm.

This uses 6 grams (1.9m) of filament.
You can also print this on it's actual stance, but then use little bit of support at the end of stub. But it should not make any difference in durability.

Screw holes fit Biltema perboard, which holes are 4mm wide and 12mm abart from each other and it is sold in Scandinavia, but there are other brands around the world with same diameters. You can also attach this to wall with wood screws.

Notes:

Set 4 or more walls to get tough print, this is functional print and not something you look at behind glass showcase.