My dining room table is 17 feet. As I like a runner to hang, I make mine 18 or 19 feet. This may not work for this one as you are so far along, but I have made all mine quilt-as-you go. I piece the top and cut about 3 feet of the backing and batting, quilt to within about 4" of where the backing ends, sew a new piece of backing on and join a new piece of batting. I space it so both seams aren't in the same spot. I bind by bringing the backing to the front. I use warm and natural, and the stemware seems to do OK. I will say that my "crystal" (it's only glass) does have a rather large stable base.