Welsa Cube 240 with thermowood exterior cladding and mirrored glass beside a villa swimming pool — Cube 240 · custom thermowood exterior claddingThis finish is available on request. Charred timber is supplied as standard.

Design & materials

A sauna that belongs
in your garden.

A clean shape, distinctive wood and panoramic glass. Discover the Cube’s materials and details.

A clean shape, distinctive wood and panoramic glass. Discover the materials and details.

Outside: 19 mm charred timber
Inside: A-grade thermo-aspen · knot-free, thermally modified aspen
Insulation: 30 mm FF-PIR panels

Timber

Charred timber outside.
Aspen inside.

Charred wood outside, knot-free thermo-aspen inside. The floor is thermo-pine. The thermally modified wood is unoiled.

19 mm cladding · Other woods on request

Close-up of the grain and texture in the dark timber cladding — The texture remains visible in the dark timber.

Hardware

Door handle
and hinges.

Stainless-steel hinges and lock, dark exterior hardware and a wooden knob inside. Choose the door on the left or right, viewed from outside.

Round wooden knob on the inside of the glass sauna door — 01 / The wooden knob on the inside.

Detail of the dark hinge on the glass sauna door — 02 / Where the hinge meets the glass.

Glass & light

Smoked
or mirrored glass.

Smoke glass has a dark tint. Mirror glass reflects the garden in daylight. Both let you look out from inside the sauna.

8 mm toughened glass. Reflection changes with the balance of light.

Cube with mirrored glass reflecting the landscape and sky — Mirror glass · reflects the surroundings in daylight.

Reflection depends on the balance of light inside and outside. A lit interior may be visible; mirrored glass does not guarantee privacy.

Interior

The HUUM DROP
inside the Cube.

The 9 kW HUUM DROP is wall-mounted. Control through the UKU panel or HUUM app is included. Indirect LED lighting beneath the upper bench and behind the backrest provides soft light.

App control requires internet and safety confirmation on the UKU. The starry ceiling is optional. Bench dimensions are shown in the configurator.

HUUM DROP with exposed stones beside the wooden bench and panoramic glass wall — The heater viewed from inside the sauna.

Your specification

Choose your specification.

Compare the four sizes and choose smoked or mirrored glass, your control panel and additional options.

Configure your Cube

Construction

What lies beneath.

Beneath the timber finish, insulation, steel and the roof structure form the foundations of the Cube.

A steel base

The support beams are powder-coated galvanised steel. Adjustable galvanised steel feet allow the sauna to be levelled on a suitable, load-bearing surface.

30 mm FF-PIR insulation

30 mm FF-PIR insulation panels help limit heat loss and retain heat inside the sauna. Heating time and energy use also depend on outdoor temperature, the selected temperature and usage.

A roof designed to shed water

The three-layer roof construction combines water-resistant plywood with roofing rubber. The roof slopes to drain rainwater.

Charred timber outside. Aspen inside.

Door handle and hinges.

Smoked or mirrored glass.

The HUUM DROP inside the Cube.