I'm currently trying to build a sort of L shaped lean to on the corner of the house.  Not necessarily for my figs, although it will help to lengthen the season here in MA.  The question I have is I can't decide if I want a two foot high wall all around to protect it from maybe the snowblower hitting it, since it has a walkway and driveway butting up to it or should I go with glazing panels down to the ground for maximum sun.  I thought that if I have the wall it would hide bags of potting soil and stuff under a bench along the wall and I could also insulate it somewhat.  The framing is on a concrete slab. I  would appreciate your thoughts on this.

I would built a two foot wall. It will also help keeping it warm. 

Thanks, Two foot wall it is.  Someone else mentioned that their greenhouse had alot of holes in the bottom half from rocks spit out by the lawnmower and numerous other accidents that now needs replacing so I'll go with the small wall.  Thats a nice picture of a leanto.