Originally Posted by seamstome
I was just thinking about this last night. The current quilt I am working on will finish at 112 by 124. That makes it bordered on all four sides. That will make it one inch off the floor all the way around the bed.
Except the corners at the foot end, which will hang down farther unless you round them off. Think of it as a diagonal line from the corner of the mattress to the corner of the quilt. The length across the diagonal of a 4-sided figure is greater than the sides.