For walls specifying a concave joint finish, where is the flush-cut made?

In masonry, a concave joint finish is characterized by its rounded, recessed appearance, which not only enhances the aesthetic quality of the wall but also helps with water runoff and weather resistance. The flush-cut for a concave joint is made at the intersection of two sides, meaning that the mortar is carefully trimmed back at this point to create a consistent and neat concave profile. This technique is essential for ensuring that the joint maintains its shape and function across all connections between bricks.

Making the flush-cut at the intersection of two sides allows the joint to blend seamlessly, contributing to the smooth finish desired in concave joints. This precision is crucial for maintaining both structural integrity and design consistency throughout the masonry work.