How far can you span a 2 by 10 floor joist on an exterior treated deck?

For a 2x10 floor joist used in an exterior treated deck, the maximum span typically ranges from 12 to 16 feet, depending on factors such as the load it must support and the wood species. However, it's essential to consult local building codes and guidelines, as they may specify different requirements based on specific conditions and intended use. Additionally, using proper spacing between joists can affect the span capability. Always consider consulting a structural engineer for precise calculations.