Which structural member is fabricated with plywood panels glued and nailed to solid wood members, typically consisting of 2x4 framing?

The construction method described involves plywood panels being glued and nailed to solid wood framing, commonly using 2x4 members. This represents the fabrication method of a box beam, which is a structural element designed to resist bending. Box beams are created to ensure higher structural efficiency by creating a hollow section that can be lighter and stronger than solid wood of the same size. By using plywood in conjunction with the solid wood framing, the box beam can achieve considerable strength and rigidity while maintaining a lower weight compared to other solid wood members.

This construction approach benefits the overall performance of the structural element by enhancing its load-bearing capabilities and rigidity. The combination of the panel and solid wood provides a composite action that adds to the structural performance. When comparing it with the other methods listed, such as stressed skin panels, flat plates, and cast-in-place construction, it is clear that only a box beam specifically describes the method of using plywood with solid wood framing to achieve structural integrity.