Wanted to see what everyone else is doing in this situation.
Have a person who is short and pleasantly round. Needs a 3n1. What are you doing in this situation if the do not weigh 300lbs and do not fit in Std. BSC?
You could rent her a drop arm commode instead? You could do a free upgrade to a wide commode. It is too much of a pain for us to do a patient requested upgrade - but that is also an option.