Check this out:
Read about it here...
I used to work for the Clinton/Camanche PRs, and up in the Clinton store we had a 3ft pizza pan that barely fit in the oven and after cooking was placed in 4 Terminator (PRs 20" pizza) boxes and reassembled at the destination. I believe the cost was around $100 for the pizza (which 4 Terminators at regular cost are about that also...). We never sold one for the 3 or so years I worked there, but I think Cedar Rapids sold one. I dunno if that's still a record or not... Anyway...
EDIT: BTW: that pizza takes a 170oz doughball, 48oz of sauce, and 5lbs of cheese. A Terminator doughball is like 20 or 25oz or something.