What is the minimum bearing required at both ends of a double 2 x 8 header at window openings over 5 feet wide?

The correct answer is 3 inches, which is the minimum bearing required at both ends of a double 2 x 8 header for window openings that are over 5 feet wide. This requirement ensures that the header is adequately supported to carry the load above the opening, distributing the weight evenly to prevent structural failure.

In framing, headers play a crucial role in supporting the load from the roof and walls, especially over larger openings such as windows and doors. The specified bearing requirement is based on building codes and structural integrity guidelines to ensure safety and durability. A bearing of 3 inches provides sufficient material for stability and helps to prevent excessive sagging or cracking in the structure.

It's important to note that while other options suggest various bearing lengths, they may not meet the minimum requirements set forth by building codes, which are designed to ensure proper load distribution and structural integrity in any construction project.