Smith-Midland Corporation invents, develops, manufactures, markets, leases, licenses, sells, and installs various precast concrete products and systems. The company offers SlenderWall lightweight construction panel, a lightweight exterior cladding used for the exterior walls of buildings; Sierra Wall that provides sound and sight barrier for use alongside highways around residential, industrial, and commercial properties; J-J Hooks highway safety barriers, which are used on roadways to separate lanes of traffic in construction work zone or traffic control purposes; Easi-Set precast building and Easi-Span expandable precast buildings for use in housing communications operations, traffic control systems, and mechanical and electrical stations; Easi-Set utility vaults for use in house equipment, such as cable, telephone, or traffic signal equipment, and for underground storage, as well as manufactures custom-built utility vaults for special needs; SoftSound soundwall panels that absorbs highway noise; Beach Prisms erosion control modules for seawalls and jetties; and H2Out secondary drainage systems for panelized exterior cladding. It licenses its proprietary products in the United States, Canada, New Zealand, Australia, Belgium, Mexico, and Trinidad. The company markets its products through in-house sales force and independent sales representatives; contractors performing public and private construction contracts, such as construction of commercial buildings, public and private roads and highways, airports, and municipal utilities; and federal, state, and local transportation authorities.