Been trying to bend my head round something that is no doubt so simple it is unreal...!! I am designing a structure that has a total weight of 1.6 tonnes (1600kg), the structure floor area is 8m x 3.5m and sits on 8 pads of 500mm x 500mm. To calculate the floor loading do I: Divide the weight by the floor area i.e (1600 x 9.81) / (8 x 3.5) = 560.6 N/m2 or Divide the weight by the total floor area of the pads i.e. (1600 x 9.81) / ((0.5 x 0.5) x 8) = 7848 N/m2 ?? It is driving me nuts, any help is a massive step forward!