How much weight was 6 x 6 post hold?

The weight a 6x6 post can hold depends on various factors including the type of wood, its condition, and the specific application (e.g., vertical load, lateral load). Generally, a 6x6 post can support significant weight, often several thousand pounds for vertical loads, but it's essential to consult building codes and structural engineering guidelines for precise calculations. For specific applications, such as decking or Fencing, it's best to refer to manufacturer specifications or a structural engineer for exact load capacities.