What term describes the horizontal layer of bricks in a wall?

The term "course" refers to a horizontal layer of bricks in a wall. In masonry, a course is defined as a single row of bricks that are laid side by side, typically with mortar in between. This horizontal arrangement not only helps in establishing the structure's height but also contributes to the overall strength and stability of the wall when combined with vertical and cross-bonding techniques.

Each course must be carefully aligned and leveled to ensure that the wall remains plumb and structurally sound. Understanding courses is fundamental in masonry, as they are essential for creating uniformity and consistency in brickwork.

The other terms have different meanings within masonry. A "wythe" refers to a single vertical section of a wall that consists of an entire thickness of masonry and can be a single or multiple courses high. "Bond" relates to the pattern or arrangement of bricks and how they interconnect with one another to enhance the wall's strength. A "header" denotes a brick that is laid flat on its end, across the face of the wall, typically used in specific bonding patterns to support stability.