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Outdoor sauna in Mangawhai with dark cladding and a large window, built by FinnSauna
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Outdoor saunas, built for your section.

A sauna of its own in the garden, beside the pool or looking out over the view. Designed with you, prepared in our Auckland workshop and built on site, anywhere in New Zealand.

Talk to us about an outdoor sauna
Why outdoors

Step out of the house, into the heat.

An outdoor sauna doesn't take a room from the house, and it gives you somewhere to cool off between rounds: the deck, the pool, the garden, or just the fresh air.

Every one we build is custom. We start with your section, your view and how you want to use it, then design the room around that. It might be its own little building, part of a pool house, or a covered corner of the deck. No kitsets, no flat-packs: real Finnish sauna timber and heaters, put together by our own team.

Your choices

Small to family-sized, wood-fired or electric.

01. Building

Standalone or attached

A separate sauna building, a room in the pool house, or a sauna built into an unused outdoor area. We work with what your section has.

02. Heat

Wood-fired or electric

The crackle and smell of a wood-fired stove, or the convenience of an electric Harvia heater you can switch on from inside the house or from your phone.

03. Timber

Finnish and Estonian timber

Thermally modified alder, aspen or spruce, imported direct and chosen for colour, comfort and how it stands up to heat and weather.

Inside the Mangawhai outdoor sauna: L-shaped benches and a big window over the paddocks
How we build

Made in the workshop, finished on site.

Design first

Send us photos or plans of the spot. We size the room, the benches and the heater to suit, and show you how it will look before anything is built.

Workshop-built benches

Benches are built and test-fitted in our Auckland workshop, so the site work is quick and tidy.

Built for the weather

Proper insulation, a vapour barrier and ventilation, so the sauna heats fast and stays sound outdoors for decades.

Finished to last

Benches treated with Supi Sauna Wax. Never lacquer, so the timber can breathe.

Start now

Let's talk about your next sauna.

A new build, a heater, a steam room or a service — tell us what you have in mind and you'll get a straight answer from a builder, not a call centre.

Send us a message Call 0800 346 672