How much bearing is required for wood on concrete?

The requirement for the amount of bearing for wood on concrete, which is specified in various building codes, is typically set at a minimum of 3 inches. This 3-inch bearing is crucial for ensuring adequate support and stability of the wooden elements. Proper bearing helps prevent issues such as water intrusion, decay, and deterioration of the wood caused by direct contact with concrete, which can lead to compromised structural integrity over time. By ensuring this minimum bearing, inspectors can help maintain long-term durability and strength in construction practices. This standard also aids in reducing moisture-related problems, as elevating wood above the concrete allows for better airflow and drainage.