A pile cap is a type of foundation that is placed on top of a group of piles to distribute the load of the structure above. On the other hand, a footing is a type of foundation that is placed directly below a column or wall to spread the load of the structure over a wider area of the soil. While both pile caps and footings are used to provide stability to a structure, the main difference lies in their positioning - pile caps sit on top of piles, while footings sit directly below columns or walls.
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