Fiberglass pool
A pre-molded one-piece pool shell dropped into the excavation — faster and lower-maintenance, but size-limited.
Fiberglass pools arrive as a single factory-made shell craned into the hole, so installation is quick (about 3–6 weeks) and the smooth gel-coat surface resists algae and needs fewer chemicals. The trade-off is that pre-made shells cap out around 16×40 ft (~640 sq ft) and you can't customize the shape. It's the middle option on price between vinyl and gunite.
Put it to work
See also