That looks like a really good idea, could you go back in time and post that where I could see it a year ago?  :)

I did as several others have suggested with a step and edge protected by angle iron.  It works good, but makes a pretty good jump getting in and out of the building.  It doesn't matter for larger pneumatic tires, but small tires (zero turn lawn mower) and things with solid tires don't like the climb up over that ledge.

Mike