At Johnson Concrete Products, we have been making concrete blocks since 1947 and have earned a reputation as an industry leader in quality, service and value. Through the years, lightweight concrete block has remained a preferred and economical component in high performance commercial building applications.

Our lightweight concrete Gray Block is your go-to solution for high-performance construction projects, offering unmatched quality, outstanding service, and exceptional value.

Unmatched Quality and Compliance

We adhere to rigorous manufacturing standards to ensure that our Gray Block meets and often exceeds ASTM C90 specifications. At Johnson Concrete Products we are committed to delivering masonry blocks free from organic impurities such as coal/bottom ash, cinders, and other contaminants that can compromise the integrity of your construction. We exclusively utilize Stalite expanded slate, a lightweight aggregate produced through the rotary kiln process, meeting ASTM C331 and ASTM C330 standards to guarantee superior performance.

Gray Block Variants

Our Gray Blocks come in various forms, each catering to specific construction requirements:

  • Sizes: Explore a range of sizes to suit your project’s needs, including the popular 8″ x 8″ x 16″ dimensions.
  • Weight: Enjoy the ease of handling our lightweight Gray Blocks; the 105 density stretcher weighs just 28 lbs.
  • Fire Rating: Enhance safety with Gray Blocks boasting a robust 2-hour fire rating, providing peace of mind for your projects.
  • Texture: The consistently tight texture not only adds visual appeal but also minimizes the need for additional coats of block fill in typical applications, saving you valuable time and resources.

Specialized Variants

Our product line extends beyond the standard Lightweight Concrete Block. Discover our specialized variants to address specific construction needs:

  • Natural Grey Split Face Masonry Blocks: Perfect for projects requiring a textured finish that stands out.
  • Tight-Textured Kitchen Blocks: Designed with functionality and durability in mind, these blocks are an excellent choice for kitchen applications.
  • Integral Water Repellent: Added protection against moisture infiltration, ensuring long-term durability.

Patented Efficiency with ProBlock

For those seeking labor-saving and energy-efficient solutions, our Contractor Series is also available in the patented ProBlock design. This innovative approach streamlines installation, reduces labor costs, and enhances energy efficiency, all while maintaining the exceptional standards synonymous with Johnson Concrete Products.

UL® Approved Fire-Rated CMU

Safety is paramount in construction, and our Gray Blocks are up to the task. Johnson Concrete Products proudly holds certification as a producer of Underwriters Laboratories® Approved Fire-Rated CMU. This certification underscores the fire-resistant properties of our concrete masonry units, ensuring compliance with industry safety standards for your peace of mind.

Lightweight CMU - Gray Block
Lightweight CMU – Gray Block

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