BUILDING BLOCKS: SAFER THAN EVER! Our range of building blocks manufactured using a high-performance vibropress will meet the most demanding performance criteria. Manufactured at our CPCI-certified plant by the Canadian Precast and Prestressed Concrete Institute, our building blocks meet and exceed Canadian standards (CAN A.165.2-M85 TYPE 1-25, ASTM-C55, ASTM-C145 and BNE 2623- 001-76). Choose from our hollow and solid building blocks for your next project.