What is required for joists framing into the side of a wood girder?

When joists are framed into the side of a wood girder, it is crucial that they are properly supported to ensure structural integrity and safety. The requirement for joists to be supported by framing anchors or ledger strips ensures that the load is evenly distributed and adequately transferred to the girder. This method provides a secure connection, reducing the risk of structural failure due to issues such as settling or movement over time.

Using framing anchors or ledger strips effectively reinforces the connection between the joist and girder, helping to maintain the alignment of the framing and ensuring that the system can withstand applied loads. Proper support is essential in construction to comply with building codes and to maximize the performance of the structure.

Other considerations like nailing directly to the girder (though sometimes permissible) do not offer the same level of support, and methods like painting or avoiding contact are not meaningful requirements for structural connection. Therefore, the correct answer emphasizes the importance of proper support mechanisms in framing practices.