The maximum load to be lifted 22,000kgs + Load 1,500kgs 3. Outrigger Load Point load = (1+2) x 100% = (50,000 + 23,500) x1 = 73,500kgs or 73.5t 4. Ground Type Ground mes in granular and hesive types. Bearing Values BS: 8004 5. Mat size Mat size deducted from point load in 3 (in kNs) / (Soil type value 2) 73500 x 9.81 = 721,035 kNs