A custom pool refers to a pool that has been specifically designed for you and your backyard. A designer will come to your home to get an idea of what type of pool you are looking for. Custom pools can be any shape or size and are designed to specifically fit your backyard and your specific needs. The classic rectangular pool is no longer the standard in pool design. With advances in technology, and the process of spraying a concrete mix called gunite onto a metal rebar framework, pools now have the flexibility to take on almost any design that one can imagine. A custom pool can take on any functionality that ones wishes: a play pool with two shallow ends, a lap pool that is longer and narrower, a dive pool with added depth, a free-form pool to fit your yard, an oversized spa for steamy relaxation, or even a perimeter overflow or negative edge pool for the sheer wonder and beauty of design.