What is the purpose of a header in a wall frame?

The purpose of a header in a wall frame is to transfer weight to the sides of openings, such as doors and windows. When a wall has an opening cut into it, such as for a window or a door, the structural integrity of the wall must be maintained. The header plays a crucial role in this by spanning the opening and redistributing the load from the structure above, such as the roof or upper floors, down to the vertical members (studs) on either side of the opening.

By doing so, headers help prevent the wall from sagging or collapsing around the opening, ensuring the overall stability and strength of the wall frame. This function is an essential aspect of framing construction, as it allows for the inclusion of various architectural features while maintaining structural safety.

The other options do not accurately reflect the primary function of a header in construction. For example, headers are not designed for insulation purposes, nor do they primarily support beams; their main role is weight transfer. Aesthetic appeal is not a consideration for the header's structural function, though it may play a role in the overall design once covered by drywall or other finishes.