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A TRESSS pool floor closed flush into a stone terrace at dusk, with loungers set out and a golf course beyond
Aquatectural designs · United States

Pool when you want. Patio when you need.

Movable pool floors and smart plunge pools for luxury homes. One engineered surface that lowers to any depth you choose, then rises flush to give the terrace back.

Indianapolis, Indiana.
Installing nationwide.

ASTM certified.
Made in the USA.

The company

TRESSS is a US manufacturer of engineered movable pool floors and smart plunge pools. One surface sets to any depth you choose, closes flush to become walkable, and gives a luxury home its terrace back for the months a pool would otherwise sit covered.

A closed pool floor reading as a stone terrace at Chatham Hills
A paved terrace over a closed pool floor at Holliday Farms
A family swimming in a TRESSS pool at Casa Heard
A city garden pool at a downtown Indianapolis residence

Specified by architects, builders and designers

Who we work with
Sinclair Building Architecture DesignBPI Outdoor LivingEngledow GroupModish PoolsAANOVALUXE Interiors + DesignArchitizer A+ Awards
A closed TRESSS pool floor in use as a games court beside a modern pavilion

The same square metres, with the floor closed and the net up

How we work

A surface for any season, any purpose

A conventional pool takes the best part of the garden and holds it, then spends winter under a cover. Ours gives it back. The floor sets to a full plunge, a shallow soak or flush with the terrace, and the water stays inside the pool throughout.

Read our story
  • Engineer it properlyThe system had to be precise before it could be beautiful. Structure, mechanics and controls are designed to be lived with daily, not demonstrated once.
  • Build it to disappearA TRESSS floor is detailed to sit inside the architecture, flush with the terrace and without the plant boxes and covers that usually give a pool away.
  • Stand behind itWe monitor our installations, service them regularly and answer for them afterwards. The relationship does not end when the water goes in.
What we make

Three systems, one moving floor

All solutions

An adjustable platform inside a custom pool that rises to become a walkable surface.

A movable pool floor closed flush, reading as an unbroken paved terrace

A movable pool floor closed flush, reading as an unbroken paved terrace

Engineered to a specification, not a finish

The engineered structure that carries a TRESSS movable pool floor

The structure that carries the surface, and everyone standing on it

Built to a standard

The floor is a structural platform, certified to ASTM so it holds people safely when it is closed. Depth is selectable to eight feet, and the change happens in seconds with the water displaced inside the pool rather than drained away.

Insulation and mechanical design are specified for all-season use, so an installation keeps working through a cold winter instead of being shut down each autumn.

See the projects

8ft

Selectable depth, from a shallow soak to a full plunge

16× 7 ft

Smart Plunge Pool footprint, delivered ready to install

1day

Typical Smart Plunge Pool installation, tested and calibrated

ASTMcertified

Independently certified safety when the floor is closed

Selected work

From pool to patio, on real projects

Book a call

Request a private consultation