sewjoyce~ You can pick your quilt size to be any size you'd like. You can think about where you might like the quilt to be once it's completed, a spot on the wall perhaps and select your size from that.
On the 26th I'll be sending out all the information to each member the size row needed for each quilt and the theme too. Each top will travel around to the other members of the group, with a different one going to you each month.