What does standard railing consist of?

Standard railing typically consists of vertical posts, horizontal rails, and infill elements such as balusters or panels. The top rail provides a finished edge and often serves as a gripping surface, while the vertical posts support the structure and maintain spacing. Materials can vary, including wood, metal, or composite materials, depending on the application and aesthetic preference. Safety codes often dictate height, spacing, and structural integrity to ensure proper functionality and protection.