A staircase is a structural element within a building or room that provides vertical access between floors or different levels. Staircases can be made from various materials and have different designs. They can also vary in their intended purpose.A staircase is a structural element within a building or room that provides vertical access between floors or different levels. Staircases can be made from various materials and have different designs. They can also vary in their intended purpose.A staircase is a structural element within a building or room that provides vertical access between floors or different levels. Staircases can be made from various materials and have different designs. They can also vary in their intended purpose.