If it’s a bed quilt I make it according to the size of the bed, if it’s a couch cuddler then I base it on the persons height and build, but I mostly let the pattern dictate the size. If the person is tall then I just make adjustments accordingly, boys in our family run from 6’4 to 6’8 , so I do try to accommodate their height so they can enjoy a quilt too. I also have an aunti who is 5’2, so I have made her throw size vs twin,