A Question about rule R11

[Twisted eric]

OK being the end of the 2nd week my team still has no design for the robot some are saying elevator and some are saying just the arm and the last third are saying both.

But i brought up a good question on rule R11
about not breaking the 84' diameter mark now is that from the middle of the robot or is that from the bumpers because I measured it out and from the center it only gives us about 1.5 feet. Now am I wrong and is it from the bumpers?

Thanks to all people who help
and is any one actually going to use an elevator? (because i know every one is going to use an arm)