Place on piles is a term used to describe the construction of a PIER. A PIER is a structure built out into a body of water, such as a lake or ocean, and supported by piles, which are large posts driven into the ground. Piers are often used for recreational activities, such as fishing, swimming, and boating. The term Place on piles is used to describe the process of constructing a PIER, which involves placing the piles in the ground and then building the PIER on top of them.