Open stairway is a common term used to describe staircases that have no walls on each side. If you are looking for synonyms for this term, there are a number of options available. A few alternatives for open stairway include open staircase, open tread staircase, open stringer staircase, open riser staircase, and floating staircase. While these terms may differ slightly in the design and structure of the staircase, they all share the common feature of being open and lacking walls or other enclosing structures. Regardless of which term you use to refer to this type of stairway, its unique design can create a sense of openness and openness in any space.