40 Hour Property and Building Inspection Practice Test

What is the minimum recommended end bearing for wood rafters and ceiling joists?

1. 1 inch

2. 1 1/2 inches

3. 2 inches

4. 3 inches

The correct answer is: 1 1/2 inches

The minimum recommended end bearing for wood rafters and ceiling joists is 1 1/2 inches. This measurement ensures that there is sufficient support for the structural members, allowing them to carry the loads placed upon them without the risk of failure. Proper end bearing is critical for maintaining structural integrity, as it distributes the weight effectively across the supporting elements, such as walls or beams. Having 1 1/2 inches of bearing allows for a secure connection between the joists or rafters and the supporting structure, minimizing the risk of movement or settling that could compromise the building's safety. The standard is established to provide adequate contact area for the distribution of loads, which is particularly important in preventing issues related to sagging or instability in the roof and ceiling systems. In many building codes and guidelines, this minimum is often referenced, making it an important aspect for builders and inspectors to follow.