The Largest Trade Show for Hardscape Contractors and Distributors! Hardscape North America is for installers, owners, foremen ... , supervisors and key laborers. HNA began in 2007 and has grown every year since. Its focus is to bring top notch education including certification courses, products and technology to contractors and installers who build segmental pavements and segmental retaining walls. Indoor and outdoor exhibits displaying state of the art tools and products will be featured, offering the latest technology for contractors. Seminars and demonstrations offering certification, business skills and marketing tools provide valuable education and networking opportunities. read more