Idea: Branch staircase and rough wood steps. The Adirondacks country house's main staircase railing is crafted from tree branches and logs. Notice the use of a variety of natural woods in the unfinished wood walls and the rough hewn wood block stairs.
Levitate Architects used a staircase to a loft-like bedroom to create an enormous amount of book storage space. Even though the staircase isn’t very compact but could accomodate so many books that it would save some space anyway.