Despite what they are used for, baluster setups for railings play a huge role in the usability and looks of an area. While most people will only recognize them for their basic function of holding a handrail up, they also play a huge role in how the entire area appears.
A baluster setup for a winding staircase in a fancy entrance hall will simply not look right without a style of baluster that goes with the rest of the environment. Along with different styles come different materials that have their own pros and cons. However for most applications using metals is the best idea for quite a few different reasons.