Staircase Railing Balusters are the closely spaced supports, which are used to support the waist-high handrail. These are used for safely containing the people inside a patio deck or stairway. These are extremely practical as well as decorative. These are known to provide style as well as adequte support to the rail system. Staircase Railing Balusters can function as the spindles, and are suited for the residential projects. These are apt for both exterior as well as interior staircase.