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These heaps are commonly 3 to 10 inches in diameter as well as can be pierced to midsts upwards of 200 feet. For the most usual kind of mini loading, a hollow steel or plastic shaft is either screwed or drilled right into the ground. Grout or concrete can then be gathered to form the pile, with the soil sustained throughout by the steel shaft. This implies that, unlike the conventional boring approach, no extra assistances are required, also in weak soil. Screw pile installments have additionally extended to domestic applications, piling contractors in north west with many homeowners selecting a screw stack over other options.