So, here’s the answer – the correct way to hang toilet paper is to have the sheets OVER the roll, not under. That’s right – the answer is the end of a toilet paper roll should be on the outside, or in the “over” position, because the rolls were intended to have the sheets readily available and not behind/under the roll. One patent holder Seth Wheeler, who had patented the toilet paper with incisions/perforations for individual sheet selection, proves this all to be correct.
Here is some “definitive” proof of how the rolls meant to hang:
You view several other inventors knew this to be true – and even when the rolls weren’t “rolls,” but were flat tissues or folded, it was still always over – not under.
The History of the Toilet Paper Roll"