After seeing this, I actually bought the ones you recommended. these 12 gal .
I had originally bought Stardoggy in post #14, the smaller version (single row of discs) and it was definitely too short to hold discs without tilting them.
I'm going to try and add noodles/padding so that it can hold two rows in place without them touching.
What kind of discs are you putting in there, or are you putting padding at the bottom? With no padding at the bottom, I had no problem completely filling a bin with drivers, with no pushback. Putters and mids required me to take a disc out, but they fit fine after that. I'm not putting padding at the bottom, FWIW.