The Forma Sauna has been designed and built with the same attention to detail we bring to movement and coaching.

Every material has been chosen for how it feels, how it ages, and how it supports the experience of heat, rest, and recovery.

It is not a spa, but it is uncompromising in quality.

Interior of the Forma sauna showing aspen wood benches and natural light

The Space

The interior is finished in aspen, selected for its clean grain, low resin content, and soft feel against the skin.

The benches are generously proportioned, allowing space to sit upright, recline, or 3 people to fully lay down as the heat builds.

Natural light and pale timber create a calm, open atmosphere even at higher temperatures.

Built to Finnish Sauna Principles

The Forma Sauna has been designed and built in line with traditional Finnish sauna principles, where heat, airflow, and materials are treated as a single system.

The space is constructed as a wet sauna, with appropriate floor gradients and drainage, allowing water to be used safely on the stones and surrounding surfaces.

Ventilation supports proper löyly — the soft, enveloping steam created when water meets hot stone — resulting in a sauna that feels deep, breathable, and balanced.

Wood-fired sauna stove with stones and travertine floor inside the Forma sauna
Travertine stone floor and timber detailing inside the Forma wood-fired sauna

Material Details

Underfoot, the sauna is finished with travertine stone flooring, chosen for durability, heat tolerance, and ease of cleaning.

Interior surfaces are finished in aspen, selected for its clean grain, low resin content, and comfortable feel against the skin.

The sauna is heated by a Narvi Kota Kuru wood-fired heater, made in Finland and fitted with an integrated hot water tank — a robust, traditional stove designed specifically for authentic sauna use.

These materials respond well to repeated heating, cooling, and moisture — allowing the sauna to be used as intended, session after session.

Built for longevity, not just occasional use.

Sessions & Access

  • Sauna sessions run on selected days each week

  • Numbers are capped to 6 maintain comfort and quality

  • Suitable as a standalone visit or alongside training

  • Open to Forma members and the wider community

  • Class Passes  can also used, drop ins welcome also

Booking

All sauna sessions are booked in advance via our online schedule.

Please arrive on time so the experience remains calm and unhurried for everyone.

 

Private Hire

The sauna is also available for private hire for individuals or small groups, £60 per 90 minutes.

If you would like to enquire about a private session, please contact us directly at info@formastrength.uk and we’ll be happy to discuss availability and options.

Book your sauna session

View available sauna sessions and reserve your place below.

Pricing

Existing forma customers can use their class passes | Drop in sessions are available at £12. Payment and booking are complete when you reserve your session. Cash payments are accepted, please contact us before hand.

 

Good to know

Please bring a towel, filtered drinking water is provided but feel free to bring your own.

Changing area and toilet facilities are available on site. A cold water shower is available outside the sauna.

We recommend arriving a few minutes early to settle in before your session begins.

Part of Forma

The Forma Sauna sits alongside our classes, coaching, and therapies — supporting recovery, resilience, and long-term health.