What is the minimum end bearing of a joist on wood or metal?

The minimum end bearing of a joist on wood or metal is 1.5 inches. This requirement is established in building codes to ensure adequate support and stability for the joist, preventing potential issues such as sagging or failure under load. Sufficient bearing length is critical, as it allows for the distribution of loads and helps maintain the structural integrity of the construction.

The specified 1.5 inches provides a balance between ensuring that the joist is securely seated while also minimizing the material usage and cost. This measurement applies to both wood framing and metal joists, ensuring uniformity in construction practices.

Understanding these requirements is essential for contractors, as they must adhere to local building codes to ensure safety and compliance in their projects.