Construction Specialties | 31,935 followers on LinkedIn. People. Buildings. Better. | Founded in 1948, Construction Specialties (CS) is a family-owned building products company celebrating 75 years in business. CS provides solutions to complex problems that architects, designers, building owners, facility managers, and contractors face every day. Since inventing the first extruded louver, CS has become a global leader in interior wall protection, impact-resistant doors and frames, entrance flooring, expansion joint covers, architectural louvers and grilles, sun controls, specialty venting, cubicle curtains and tracks.