I believe I saw the tute on this site a couple of weeks ago...anyway it was right before our daughter's wedding, thought I saved it, but can't find it.
The general instructions were to sew the right sides together like an envelope, leaving a little opening for turning.
Here is where I need help. You were to miter the corners of the 40" fabric so that when you turned it right-side-out, the border was ready to be sewn down.
Has any one done that? Any help you can give me would be greatly appreciated.