Which is NOT a method for supporting the ends of each joist in conventional light-frame construction?

In conventional light-frame construction, the ends of joists must be properly supported to ensure the structural integrity of the building. Solid blocking, ledger strips, and framing anchors are all accepted methods for this purpose.

Solid blocking involves inserting short pieces of lumber between joists, creating a physical support point that helps distribute loads. Ledger strips are horizontal pieces of wood that are attached to a beam, allowing joists to be anchored securely at their ends. Framing anchors are metal connectors that provide additional support and stability by fastening the joists to the beams or other structural elements.

On the other hand, direct nailing of the joist ends to the beam is not a widely recognized or effective method for supporting joists. While it may seem feasible, direct nailing does not provide the necessary lateral support or load distribution that specialized methods like blocking, ledger strips, and framing anchors offer. Therefore, while nailing could potentially connect joists to beams, it lacks the structural benefits of the other methods, making it the correct answer in this context.