I had great success printing this with 20% infill from PLA, but I wonder if it even needs 20%. 

It is a bit longer than some of the other door hooks I have seen around, but still I was limited with the print size of my Entina Tina 2S.

I also wanted to make sure it feets well on the IKEA PAX doors we have.

We use these to keep drying clothes on a hanger in way that they are not that close to the actual door (a bit faster drying). I am not sure if it would be strong enough for a full on suit, but plenty strong for a couple of shirts etc.