"I do a very rough trim of the sandwich prior to sewing on my binding. I use a 2.25" binding. Once machine sewn to the front of the quilt I then do a final trim at 1/2 inch from the seam line. I also (after reading here) no longer iron my binding in half first. It seems odd at first but it is easier to then hand sew to the back of the quilt. I get full bindings this way." NJ Quilter
A question for those that trim after the binding is attached. I like the method of trimming the quilt after binding is attached. Do you mark a reference line around the quilt to keep the binding straight?