The Concrete Masonry & Hardscapes Association (CMHA) represents a unification of the Interlocking Concrete Pavement Institute (ICPI) and the National Concrete Masonry Association (NCMA). CMHA is a trade association representing US and Canadian producers and suppliers in the concrete masonry and hardscape industry, as well as contractors of interlocking concrete pavement and segmental retaining walls. CMHA is the authority for segmental concrete products and systems, which are the best value and preferred choice for resilient pavement, structures, and living spaces.
Designers and architects trust Unilock paving stones and retaining walls to achieve their vision without having to compromise either creative design or long-term performance. Unilock has a wide range of exclusive textures, styles, and colors, and an extensive array of customizable solutions, combined with the most advanced technologies in the industry, delivering exceptional strength, resilience and beauty. We introduced pavers to North America and continue to lead the style and technology trends in the hardscape industry.