In masonry construction, what is the primary concern when considering the size of blocks?

The primary concern when considering the size of blocks in masonry construction is adherence to building codes. Building codes dictate specific requirements for materials used in construction, including sizes and dimensions of blocks. These regulations ensure safety, structural integrity, and compatibility with other building elements. Compliance with these codes is essential for legal, safety, and insurance purposes.

While factors like weight, cost efficiency, and aesthetic appearance are important in their own right, they are secondary to the requirements set forth by building codes. Codes could specify the minimum or maximum dimensions for blocks to ensure that they can support certain loads, resist environmental effects, and comply with local zoning laws. Hence, understanding and adhering to these regulations is crucial in selecting the appropriate block sizes for any masonry project.