What do we call the end of corners and jambs in masonry?

The term that describes the end of corners and jambs in masonry is "stepped-back." This technique involves creating a series of set-back steps or ledges at the corners and edges of a masonry wall, which serves to reinforce the structure and enhance its aesthetic appeal. Stepped-back corners can help prevent water from pooling and can provide a solid base for additional courses of bricks or blocks, ultimately contributing to the overall stability of the masonry work.

The other terms do not accurately describe the end treatment of corners and jambs. "Double-wythe" refers to a masonry wall that is two units thick, typically used for structural support or insulation. "Concave" describes a curved inward shape, often seen in arches or profiles, rather than at the corners of a wall. "Corner pole" is not a standard term used in masonry to describe corner treatments; rather, it may refer to pole framing in other construction contexts. Thus, "stepped-back" is the correct term to use for this specific feature in masonry.