What is the minimum bearing required for joists, beams, or girders on wood or metal?

The minimum bearing required for joists, beams, or girders on wood or metal is 1-1/2 inches. This requirement ensures that there is adequate support and stability for structural elements. A bearing of at least this dimension helps distribute loads effectively and prevents undue stress on the connections.

In construction, proper bearing depth is crucial for maintaining the integrity of the structure, particularly in load-bearing applications. When joists, beams, or girders rest on a support, the bearing area must be sufficient to transfer the weight and forces to the supporting surface without risking failure.

While other options could be common figures mentioned in construction contexts, they do not meet the established minimum standard for bearing requirements. Adhering to the correct measurement is essential for compliance with building codes and to ensure the long-term performance of the construction.