Barrel Sauna vs Cabin vs Cube: Buying an Outdoor Sauna
A barrel sauna is the cheapest outdoor sauna that gives real heat, from about $4,500 with a heater. A cabin costs more and lets you stand up inside; a cube costs the most and is mainly about looks.
By John Voll · Updated Oct 27, 2026 · We may earn a commission from links
Barrel
A barrel sauna is wooden staves held together with steel bands. The round shape has less air to heat than a box with the same bench length, and no corners where heat collects, which is why barrel listings tend to stress heat-up time.
The downsides are inside. The walls curve in overhead, so the upper bench sits lower than in a cabin, and the floor is a narrow strip unless you add a floor kit. Almost Heaven sells one for its barrels, starting around $459.
| Model | Price | What the price buys | Link |
|---|---|---|---|
| Almost Heaven Salem 2-Person Barrel | $4,485 | with a 6 kW Harvia KIP heater | View |
| Almost Heaven Watoga 2-4 Person Barrel | $5,184 | with a 6 kW Harvia KIP heater | View |
| Redwood Outdoors Barrel 6-Person | $5,299 | cabin price; heater chosen separately | View |
| Almost Heaven Pinnacle 4-Person Barrel | $6,060 | with a 6 kW Harvia KIP heater | View |
| Renu Zeno 4-Person Barrel | $7,129 | with a 6 kW KIP heater | View |
| Almost Heaven Princeton 6-Person Barrel | $8,932 | with an 8 kW Harvia KIP heater | View |
Lowest listed configuration on each maker's store, checked Oct 27, 2026.
Cabin
A cabin sauna has flat walls and room to stand, usually with two bench levels. That is more air to heat, so cabins usually come with bigger heaters. They also look like a small building, which may matter to your HOA.
| Model | Price | What the price buys | Link |
|---|---|---|---|
| Redwood Outdoors Cabin 4-Person | $6,299 | cabin price; heater chosen separately | View |
| Almost Heaven Allegheny 6-Person Cabin | $10,722 | with an 8 kW Harvia KIP heater; wood-burning option $15,006 | View |
Lowest listed configuration on each maker's store, checked Oct 27, 2026.
Cube
Cubes are cabins with large glass fronts and a modern look. Almost Heaven's 1 to 2 person Blackwater Mini-Cube starts at $8,397 with a 6 kW heater, nearly double its 2-person Salem barrel with the same heater. Glass also loses heat, which the heater size calculator accounts for.
Kits and assembly
Most outdoor saunas from these makers arrive as kits that you or a hired installer put together. Almost Heaven sells some as "Quick Ship Kits." Plan for two people and a weekend. The heater still needs an electrician; see the electrical guide.
What goes underneath
A sauna with people in it is heavy, and wood on wet ground rots. It needs a level surface that drains. The usual options:
- A concrete pad: the most solid, and the most expensive if you don't already have one.
- Pavers on compacted gravel: cheaper and drains well. This is the usual DIY choice for barrels.
- An existing deck, if it can carry the load. Have someone who knows decks check it.
Sources
- Almost Heaven, Salem 2 Person Barrel Sauna
- Almost Heaven, Blackwater Mini-Cube Sauna
- Almost Heaven, Barrel Sauna Floor Kit
- Redwood Outdoors, Barrel Outdoor Sauna 6 Person
- Redwood Outdoors, Cabin Outdoor Sauna 4 Person
- Almost Heaven, Princeton 6 Person Barrel Sauna (180°F in about an hour)
- Renu Therapy, Zeno 4-Person Barrel Sauna
Prices and specs are from each maker's own product page on the date shown next to them. Prices change; the store is always right and we may be out of date.
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