What is the typical weight of a standard CMU?

A standard concrete masonry unit (CMU), commonly referred to as a concrete block, typically weighs around 60 pounds. This weight is largely due to the materials used in the manufacture of the CMU, which include concrete and possibly aggregate, both of which contribute significantly to the overall density and weight of the block.

Understanding the weight is important for various construction scenarios, including handling, transportation, and structural load calculations. While there are lighter and heavier variations of CMUs depending on the mix and design, 60 pounds is generally recognized as the standard weight for a nominal 8x8x16 inch CMU. The standard weight also simplifies planning for labor and equipment needs on a construction site.

Other weights presented in the options may represent variations or specific applications but do not reflect the typical weight of a standard CMU used in most construction projects.