What is the maximum height for a 6x6 wood deck support post?

The correct maximum height for a 6x6 wood deck support post is determined by several factors, including local building codes and structural integrity. A height limitation ensures that the post can adequately support the weight of the deck and withstand environmental loads such as wind and snow without compromising stability. Typically, a 6x6 post is designed to carry significant loads, but as the height increases, the potential for instability due to buckling also increases.

In many codes and guidelines, including those by the International Residential Code (IRC) and various local building codes, a 6x6 post is often allowable up to a height of about 14 feet under certain conditions. This limit may apply when appropriately braced or when certain lateral loading conditions are met.

While other options might also be usable under specific circumstances, the general consensus for a maximum height of 14 feet holds true in standard construction situations, making it the correct answer for this question. This height allows for a balance between structural safety and practical use in typical deck constructions.