When is a block not just a block?

When it’s a CMU!

The concrete masonry unit (CMU) has come a long way since it was first created; still, the story of how it came to be is an interesting one. An article, published in Popular Science (Apr. 2020), tells it like this…

“Your name for the venerable CMU (Concrete Masonry Unit) probably depends upon where you live, but cinder block, breeze block, and hollow block all refer to an 8-by-8-by-16-inch brick with two or three internal voids. This mainstay of construction emerged when, in 1900, Harmon S. Palmer developed a process for using coal cinders—hence the name—to create something lighter, more insulating, and easier to work with than the solid hunks of his day. The industry standardized the dimensions in the 1930s, and coal waste eventually gave way to concrete and other materials, making the items heavier and stronger.”

This durable construction mainstay is easy to install, low maintenance, and fireproof. The CMU has come a long way since it was first introduced and, as always, Colucci Realty remains on the forefront of methods and materials in construction and concrete.

Our most recent project, located at 95 River Rd Flemington NJ, began on July 28th, using 12” x 8’ x 34’ CMUs that are totally insulated with an r24 rating.


The project is at the finish-to-suit stage; completion will be 90-120 days after lease signing, depending on the fit out needed.

If you are interested in leasing the building, call us at 908-797-2305.

JLG lift

CRI is a diversified contractor and grounds support company serving New Jersey. Contact us for information and quotes related to concrete and asphalt work, water management (including sewer, water, and drainage projects), water recharge system installation, management and delivery of all phases and requirements of site-work, and professional dismantling services.