9.2 Types and Materials Used for Sheetpiling Steel sheetpiling:is the most common type used for walls because of several advantages:①~⑦ Composite sheet-pile walls 9.2 Types and Materials Used for Sheetpiling ❖ Steel sheetpiling: is the most common type used for walls because of several advantages:①～⑦ ❖ Composite sheet-pile walls