If a footing is not level but a masonry wall must be built on it, what width might a mason decide to adjust within acceptable limits?

Adjusting the bed joint allows a mason to compensate for an uneven footing while building a masonry wall. The bed joint is the horizontal layer of mortar that sits between rows of bricks or blocks, which means that variations in thickness can effectively accommodate minor discrepancies in levelness of the footing. By increasing or decreasing the thickness of the bed joint, the mason can ensure that the top of the wall remains level, despite the unevenness of the surface it is built upon. This adjustment helps maintain structural integrity and aesthetic presentation while adhering to industry standards for masonry construction.