sandpat, the USPS said I should check with UPS, believe it or not. Maybe it has something to do with our location compared to PA.
intoquilting, I also sent parcel post because I used a box I had at home. It was slightly less than the flat rate boxes...I think it was just under 2 lbs. for 2 complete quilts. I think I figured I could get more into a slightly more expensive flat rate saving money by mailing quilts in bulk. If anyone figures out a better process, I'd appreciate it if you'd post.