2-Person Outdoor Sauna UK: Best Cabin Options for Couples

A 2 person outdoor sauna is the size most couples and solo bathers actually want: big enough to lie down or sit comfortably with someone, small enough to heat quickly and tuck into a normal garden. It is the most popular home size for good reason. This guide covers the shapes, the heater choice, the practical hurdles around electrics and planning, and the brands worth putting on a shortlist.

Barrel or cabin?

The first decision is the shape, and it is a genuine trade-off.

A barrel sauna heats fast because the curved walls leave less wasted air to warm, and the rounded top sheds rain naturally, which suits an exposed British garden. It is the quickest to get up to temperature and the most characterful to look at. Our barrel sauna guide goes deeper on the format.

A cube or cabin sauna feels roomier inside for the same footprint, with more usable bench space for longer, more relaxed sessions. It looks more like a small building, which some people prefer and some planning-sensitive spots do not.

For two people, either works. Choose the barrel if speed and looks matter most, the cabin if comfort over a long session does.

Getting the size right

A comfortable two-person sauna is roughly 2m by 2m, with an internal height around 2.1m. That gives room for two to sit on opposite or facing benches, or for one person to lie flat with space to spare. Smaller “1 to 2 person” pods exist and fit tight spaces, but they are cosy rather than comfortable for two adults.

Do not oversize “just in case”. A bigger cabin costs more to buy, takes longer to heat, and uses more energy every session. Our what size sauna do I need guide helps you match the cabin to how you will actually use it.

Electric or wood-fired heater

This is the choice that shapes everything else.

An electric heater is the easy-living option: precise temperature control, minimal maintenance, and it brings the cabin to 70 to 90C in around 25 to 35 minutes. The catch is the supply. A typical 4.5 to 6kW heater for a two-person cabin needs a dedicated higher-amperage circuit, so you will need a qualified electrician to run a suitable feed to the garden. Quality heater brands to look for include Harvia, Tylo, HUUM, Saunum and Narvi.

A wood-fired heater gives the authentic Nordic experience: the crackle, the soft steam, no electricity bill for the heat. It needs a flue and often heat shielding, and it should be installed by a HETAS-registered engineer. Crucially, if you live in a smoke control area, a wood burner may not be allowed, so check before you buy. Our wood-fired vs electric sauna comparison weighs the two in full, and the sauna heater size calculator sizes the heater to your cabin.

Planning and the practical stuff

Most small detached garden saunas fall under permitted development in the UK, but this is not guaranteed: proximity to boundaries, listed buildings and conservation areas all change the picture. Confirm with your local planning authority before you order. The Planning Portal explains how outbuildings are treated.

For a wood burner, also check smoke control rules, and use a HETAS engineer for the stove and flue. For an electric cabin, budget for the electrician as part of the project, not an afterthought, because running the circuit is often a meaningful share of the total cost.

Materials that last

Thermowood is the popular choice for an outdoor cabin in the UK because it is stable and weather-resistant, so it copes well with damp, exposed gardens and needs less upkeep. Spruce gives the traditional look at a more accessible price but wants a little more maintenance over time. For an outdoor sauna that lives in British weather year-round, the extra durability of thermowood usually earns its keep.

Brands worth shortlisting

The UK market has filled out, and there are solid options at every level. Palmako offers easy-to-assemble kit cabins that fit small gardens. Specialists such as Finnmark Sauna, Eden Hut and SuperSauna carry barrel and cabin options aimed at home buyers, and premium makers like Wildhut build craftsman cabins for those after something special. Whichever you choose, pair it with a reputable heater brand, since the heater does more for the experience than the badge on the cabin.

A two-person outdoor sauna is a several-thousand-pound purchase once you include the heater and the electrics, so it pays to see one in person if you can, check the wood thickness, and confirm exactly what is included in the kit before you commit. If you are still deciding where to put it, our outdoor vs indoor sauna guide covers the trade-offs.

Frequently asked questions

What size is a 2 person outdoor sauna? A comfortable two-person outdoor sauna is around 2m by 2m with an internal height of about 2.1m. That fits two people sitting on facing benches or one person lying flat. Smaller pods exist for tight spaces but feel cosy rather than roomy for two adults.

Is a barrel or cabin sauna better for two people? Both work well. A barrel heats faster and sheds rain naturally, which suits an exposed garden. A cabin feels roomier inside for the same footprint and is more comfortable for long sessions. Choose based on whether speed and looks or comfort matters most to you.

Do I need planning permission for an outdoor sauna in the UK? Most small detached garden saunas fall under permitted development, but this depends on size, position and whether you are in a conservation area or near a listed building. Always confirm with your local planning authority before ordering, and check smoke control rules if you want a wood burner.

Electric or wood-fired heater for a 2 person sauna? Electric is easier to run, with precise control and a quick warm-up, but needs a dedicated circuit installed by an electrician. Wood-fired gives the authentic experience with no electricity cost for heat, but needs a flue, a HETAS-registered installer, and is not allowed in some smoke control areas.

How much electricity does a 2 person sauna use? A two-person electric cabin typically uses a 4.5 to 6kW heater, which needs a dedicated higher-amperage supply. Running cost depends on how long and how often you heat it; a smaller, well-insulated cabin that warms quickly is cheaper to run than an oversized one.