Floor loadings are measured in KN/m². For computer room Raised Access Floors and/or non-ground floor basement areas it is important to check the floor loading to ensure the the floor structure can support the weight of the server rack or UPS system to be placed upon it. A three-phase 100kVA UPS with a 5m battery can have a total weight of 1200Kg or 1.2tonnes. Spreader plates can be used to reduce point loadings and if necessary floors can be reinforced with additional central pedestals and supports. The total loading should be verified by a structural engineer if there are any doubts.