What is a header course in masonry?

A header course in masonry refers to a configuration where bricks are laid with their ends facing outward, meaning that the shorter side of the brick is exposed. This method is typically used for several purposes, including providing strength to the wall, assisting in the bonding of different courses, and creating aesthetic patterns.

In this layout, the headers can effectively tie together different sections of a wall and can aid in distributing loads more evenly. This is particularly important in structural walls where stability and strength are essential. By alternating header courses with stretcher courses (where bricks are laid with their longer side facing outward), masons can create a strong interlocking structure that enhances the overall integrity of the wall.

The other options do not accurately describe the specific characteristics of a header course; they may refer to other arrangements used in masonry work but do not convey the precise definition required.