“A frame is assembled over the pile to be tested on top of which an amount of weight (a minimum 110 to 120% of maximum test load) is safely stacked. This generally takes the form of concrete blocks of regular dimensions and weight although steel ingots can be used provided that their weight can be assessed with reasonable accuracy. The size of the testing apparatus is generally a function of the pile size and loading to be applied. In broad terms an area of at least 15m x 15m is required for the test (see Figure 5.3). At the time of assembly, the presence of the additional cranes and associated transport deliveries will increase this working area. Consequently this is the most costly and disruptive method of providing a reaction for load testing of piles in compression…”. Text from the Handbook on Pile Load Testing, by the Federation of Piling Specialists.