With the help of a long narrow foot--one that requires me to shop for my shoes online (btw~~have you ever seen the look of a shoe salesperson when you ask for a women's 9 1/2--and then add N to that request???).
Anyhow~~I now have the quilt http://pattilousquilts.blogspot.com/2009/12/new-tradition-has-been-started.html ready to send to grandson and it fits in this box! It is heavy, but I was able to prewash it in my home washing machine with some help from "instant water" feature. It is now softer and it "molds" to the body better than before. I used a thick poly batting as that's what my daughter wanted, but it surely makes it heavy. Anyhow, I'll get it to the post office today.