What distance must a span reach to require the use of metal framing anchors or ledger strips for tail joists at an opening?

The requirement for using metal framing anchors or ledger strips for tail joists at an opening is based on the span length of the joists. When the span reaches 12 feet or more, it necessitates the additional support provided by metal framing anchors or ledger strips to ensure stability and structural integrity.

This requirement arises because longer spans can lead to increased deflection and stress on the framing members, which traditional fastening methods may not adequately address. The use of these metal connectors and supports helps to distribute the load more evenly and secures the joists, ensuring they perform effectively as part of the overall structural system.

Understanding this requirement is crucial for carpenters and builders to maintain safety and adhere to building codes, which aim to ensure that all structural components are capable of supporting the anticipated loads they will encounter throughout their service life.