Originally Posted by KarenK

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A flap (folded insert) of fabric between the quilt and the binding. For the one in the picture, I cut a 1" wide strip of fabric, folded it in half and ironed. After squaring up the quilt, the raw edges of the flap were matched to the raw edges of the quilt, pinned and machine basted a scant 1/4" from the raw edges. The sides were done first, then the top and bottom. Then the binding was applied. In the photo, the flap measures 1/4" and the binding 5/16".

Every time I've done this, I've made a small mock-up to check the measurements of the flap and binding. Sometimes the results didn't match the pictures in my head and adjustments had to be made. :-D