ESC's combination wall series are ideal when the standard series of sheet piles do not have the strength to resist the required design loads. The King Piles (which can either be pipes or H Piles with welded connectors) withstand most of the bending loads (may include vertical loads), with the intermediate infill sheet piles to transfer the soil and water pressures to the King H Piles. The infill sheet piles can be shorter - between 60-100% of the King Pile length.