so how much excess do you leave to fill that size binding?
I don't go to much trouble about it.
After sewing the binding to the quilt I turn it until the edge of the quilt goes to the middle of the binding. I don't try to stuff it. I've noticed not stuffed binding last longer on quilts then the really full binding. Of course a border is needed on the quilt so the binding won't cut off any points or run into the block pattern. Here is a fast donation quilt I made using the wide binding.[ATTACH=CONFIG]564959[/ATTACH]