On the other end of the spectrum is lightweight, but bulky stuff. I sold things like this for a time, some time ago. Would get a fair amount of grief from cust

On the other end of the spectrum is lightweight, but bulky stuff. I sold things like this for a time, some time ago. Would get a fair amount of grief from customers who would use the simpler UPS/Fedex calculators on the weight only and complain that I padding shipping prices. But UPS and Fedex charge "dimensional weight" for these types of shipments, and you have to use a more complicated formula.