The 5 " top and bottom rail makes the statement of strength. Being the largest top and bottom rail available, this system can not helped but be noticed. Due to the nature of this size, it is commonly used on larger applications such as commercial buildings or large estates. The twelve-inch balustrade boasts of strength and grandeur. If you are in need of a system that will be noticed and admired by all, without deterring attention away from the rest of the property, this is the system for you.