Which of the following is correct about boring at the ends of joists?

Boring at the ends of joists is subject to specific guidelines to maintain the structural integrity and load-bearing capacity of the joists. When the correct practice is to ensure that the boring is at least 2 inches from the top or bottom, it prevents weakening the joist. This distance helps to maintain enough material around the bored area, which is crucial for transferring loads properly and reducing the risk of failure or compromise of the joist under stress.

By adhering to this requirement, contractors can ensure the stability and safety of the structure being built. Distancing the boring from the edges also minimizes the likelihood of splitting and protects against issues that can arise from load distribution changes. Understanding these specifications is vital for contractors to comply with building codes and ensure safe construction practices.