A raised floor, raised flooring or access flooring also raised access computer floor are the name given to floor that provide an elevated structural floor normally above a concrete slab to create a hidden void for the passage of mechanical and electrical services. Raised flooring is widely used in modern office buildings, and in specialized areas such as command centers, IT data centersand computer rooms where there is a requirement to route mechanical services and cables, wiring, and electrical supply. In telecom application and Data centers underfloor air distribution is a more common way to cool the equipments by using the void below the raised floor as aplenum chamber to distribute conditioned air.