ProBlock Masonry Wall System

Benefits & Unique FEATURES



ProBlock Video

It all started when...

The ASTM C90 standard changed from requiring 2.25 in/ft minimum equivalent web thickness to requiring 6.5 in2/ft2 normalized web area in standard concrete masonry units. What followed was a 6 year design genesis that has resulted in a full line of concrete masonry units that are a patented redesign of an A-shaped, open ended CMU. The design of the original ProBlock along with the logo, marketing literature, and even the website has matured along with the engineering behind it.


Modified "A" 

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Knock-out "H"

The ProBlock masonry wall system is a wholly new concept developed for productivity, safety, energy performance and profitability. 


  •     Improved mason productivity
  •     Decreased risk in job-site related injuries 
  •     Reduced project cost and scheduling
  •     Savings on rebar and labor through reduced lapping
  •     ASTM C90 Complaints
  •     High thermal R Values without the cost premium of other masonry wall system


  Unique Features

  • 26%+ lighter than other CMU's of the same material mix, making it easier to handle and quicker to install.
  • Open-end design allows masons to lay around vertical rebar , utility runs and reduce  or avoid overhead lifting. 
  • Reduce rebar splicing and the amount of steel required for the project.
  • Balanced center of gravity is located properly "in the center web" of the block for ease of handling. 
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#TheProBlock #Masonrywallsystem