WHY STRUCTURED WIRING?
Wire is cheap. Opening walls is expensive. It is best to put in ten times the amount of wire that you will use at any one time. This provides the capacity and flexibility for the future needs of your home.

WHAT IS STRUCTURED WIRING?
Structured wiring is a method of providing the communications infrastructure of your home in a well organized, easy to understand, and thorough way to provide a general solution to your present and future needs.
Rather than run a coax here, and a Cat 5 there, and another coax somewhere else as you guess at the future needs, the structured approach is to consistently run a full bundle of wire to every significant room.
The full structured bundle consists of two 4-pair Cat 5 cables and two coax cables (usually quad shield RG-6).
There are other structures, but this is the configuration that has overwhelmingly become the standard.

ORGANIZATION IS THE KEY TO SUCCESS

If you are going to put in ten times the amount of wire that you will use at any one time, then it is
important that you organize it so you can find and connect the ten percent that you need at any
point in the life of the house.
Structured cable is a big start in that direction. It provides uniformity and completeness.
The next step is to have a central “Head End” panel where cables are terminated and organized in a patch panel where they are easy to identify and understand as the years roll on.