What are common types of in ground pools?

Common types of in-ground pools include concrete, vinyl liner, and fiberglass pools. Concrete pools are highly customizable and durable but require more maintenance and time for installation. Vinyl liner pools are cost-effective and offer a smooth finish, but the liners may need replacement every few years. Fiberglass pools are pre-fabricated, quick to install, and low-maintenance, but offer less customization in shape and size.