The point of origin for the manufactured masonry unit, commonly known as a cinder block, is generally attributed to the early 20th century. More specifically, the initial patent for a machine to manufacture these blocks was granted in 1917 to August Streubel of Wisconsin.
The advent of this building material provided a relatively inexpensive and readily available alternative to traditional brick and poured concrete. This innovation facilitated faster construction times and reduced labor costs, contributing significantly to the expansion of residential and commercial buildings, particularly during periods of rapid urbanization. The material’s fire-resistant properties and structural integrity further enhanced its appeal as a versatile construction element.