What is the minimum bearing requirement for wood on wood or metal?

The minimum bearing requirement for wood on wood or metal is 1 1/2 inches. This standard is established to ensure adequate support and load transfer between structural elements. A bearing length of 1 1/2 inches provides a strong enough contact area to effectively distribute the loads and minimize the potential for structural failure due to inadequate support.

Choosing this dimension helps ensure that there is enough surface area for the wood components to interact without excessive stress, which could compromise the integrity of the construction over time. This requirement is particularly important in maintaining the safety and durability of the building framework.