Not Traditional Tote Stacking?

[BethMo]

Stacking totes on end
Gives you extra height, alas,
Topples with a sneeze.

[ConnorAWD]

Our team has tried to do this, it does not work to any satisfaction. The smallest bump and it is over. Good luck putting a can on top of it (which would be the only reason you would be doing it).

[jijiglobe]

It seems pretty viable if you lean the totes against the backboard. Our test stacks have survived enough to suggest that, if you do it well and design a robot to place a can on that type of stack, it could work.