Comparison between Above Ground and In Ground Pools
Swimming pools can be built in ground or above ground. An above ground pool
typically cost less and takes one to two weeks to install compared to eight to
twelve weeks for an in ground pool. Above ground pools are usually round or oval
in shape with the shape being either rigid or soft side. They will have a
visible structural frame made of galvanized steel or other type of strong,
corrosive resistant material. Frames are available in different heights and
colors. An above ground pool will also have a liner as an interior finish and
are available in a variety of patterns and colors. The liner should be puncture
resistant. Decking is another component of an above ground pool. The decking can
be constructed from stamped concrete, natural stone, natural wood, a colored or
textured coating, pavers or tile. Once installed, aboveground pools cannot be
upgraded.
There are three options to choose from if an in ground pool is desired. In
ground pools can be manufactured as a one-piece fibreglass pool, be made from a
vinyl-liner, or made of concrete or plaster. High quality gunite (reinforced
concrete) pools or plaster are the most elaborate and are permanent and
reinforced. The interior can be made of white or colored plaster, pebble
aggregate, polished marble, glass bead, or tile. One-piece fibreglass pools are
pre-made in a mould and then transported to the job site. They are made from a
nonporous gel coat finish with a reinforced backing. One-piece fiberglass pools
are available in a variety sizes, shapes and color options. In ground vinyl
pools are reinforced with vinyl-liners and come in up to twenty pre-fabricated
shapes. Interior finishes come in many patterns and multi-colors.

In Australia, there are three categories that regulate pool construction:
safety, council, and water.