RobinK

I had to do one once that was too wide for my 12 foot tables. I did just like you thought to do. I folded in part of it and quilted it, then repinned the whole thing and quilted the rest. Not sure if that's the proper way to do it, but it worked for me.  Of course I had very thin batting. Not sure how it would work with thicker batting, it might roll up really wonky.  Mine wasn't too bad.