How is the maximum span for wood structural panels generally determined?

The maximum span for wood structural panels is primarily determined by their thickness and the type of edge support provided. The thickness of the panels plays a crucial role in their load-bearing capacity and stiffness; thicker panels can generally span greater distances without sagging or failing. Additionally, edge support refers to how well the panel is supported along its edges, which can significantly influence the panel's ability to carry loads over a span. Proper edge support enhances the structural integrity and stability of the panel, allowing for longer spans in specific applications.

Considering the other factors mentioned in the options, moisture content, type of wood, and installation temperature do have an impact on the performance and durability of wood panels, but they are not the primary determinants of maximum span. Moisture content can affect the strength and dimensional stability of wood, but it does not dictate span limits. The type of wood influences the overall properties of the panel, but span limitations are more closely tied to the physical dimensions and edge support. Similarly, temperature does not determine span; rather, it might influence curing or installation practices but is not relevant to the span itself. Therefore, thickness and edge support are the key factors for determining the maximum span for wood structural panels.