[EricH]

Originally Posted by ablatner

One possible reason for limiting the perimeter to 112" is that at least one dimension will be 28" or less, allowing it to fit through doorways.

Only if you have a rectangular robot. A circular robot could be 35" in diameter. A triangular robot, if equilateral, could be 37" on a side.

If the perimeter were increased in the future, I think the answer to "How do you fit a robot through a doorway?" will be the same as the answer to "How do you fit a 6' robot in a 5.5' crate?" back in 2007: Plan ahead.