A raised floor (also raised flooring, access floor(ing), or raised access computer floor) provides an elevated structural floor above a solid substrate (often a concrete slab) to create a hidden void for the passage of mechanical and electrical services. Raised floors are widely used in modern office buildings , and in specialized areas such as command centers ,
Information technology data centers and computer rooms, where there is a requirement to route mechanical services and cables, wiring , and electrical supply. [1] Such flooring can be installed at varying heights from 2 inches (51 mm) to heights above 4 feet (1,200 mm) to suit services that may be accommodated beneath. Additional structural support and
lighting are often provided when a floor is raised enough for a person to crawl or even walk beneath