What Size Sauna Do You Need? (1, 2 or 4+ People)
Start with how many people will use it, then compare each unit's listed outside footprint and height with your room, leaving the clearances the manual gives. For heaters, match your room volume to the heater's listed range.
Sizing by number of people
Go by the capacity the maker lists, then check the size. Here are listed sizes from our picks:
| Sauna | Listed capacity | Listed outside size |
|---|---|---|
| SereneLife steam tent | not listed | 35.43 x 35.43 x 70.87 in |
| Dynamic Saunas Barcelona | 1–2 people (ideal for 1, per the maker) | 39 x 36 x 73 in |
| ZONEMEL 2-person traditional | 2 people | 51.2 x 41.3 x 74.8 in |
| Smartmak 3-person traditional | 3 people | 59.1 x 47.28 x 74.86 in, as listed |
| Dynamic Saunas Bergamo | 4 people | 70 x 42 x 75 in |
| ALEKO SKD4HEM | 4 people | 67.2 x 67.2 x 75 in, as listed |
Two cabins for the same number of people can differ in size, so always check the listing.
Footprint and clearances
The footprint is the floor space the outside of the sauna takes up. The manual gives the space to leave around it, to walls and ceiling. Add those clearances to the footprint before you measure your room. Some cabins have a roof overhang: Golden Designs says the Barcelona's adds 2 in of depth.
Ceiling height
For a ready-made cabin, check its listed outside height against your ceiling, plus the clearance the manual gives. Our cabin picks are listed at about 73 to 75 in tall. For a room you build, the heater manual may set a minimum height. VEVOR, for example, lists a 76 in minimum room height for its 2 kW heater.
Heater sizing: reading a listed room-volume range
Heater makers list the room volume each heater suits, in cubic feet or cubic meters. Work out your room's volume (length x width x height, in feet) and pick a heater whose range includes it. Harvia, for example, lists 100–210 cu ft for its KIP45B. See sauna heaters by kW and voltage.
Check your room
Use the Room-Size Checker. Enter your room size, the sauna's listed footprint and height, and the clearances from its manual.
This tool needs JavaScript to calculate. Without it, use the steps and guidance on this page.
Infrared cabins and portable tents
Infrared cabins come in 1-, 2- and 4-person sizes; see 1–2 person infrared cabins. Portable steam tents take a small corner; see portable steam tents. Leave space around a steamer and its hose, per the manual.
Where it can go
Garage, basement, spare room or backyard? See indoor vs outdoor saunas.
FAQ
What size sauna do I need for 2 people?
Pick a unit listed for 2 people, then check its listed outside size against your room. Two 2-person cabins can be quite different in size.
How much space do you need for a home sauna?
The listed outside footprint plus the clearances in the manual, on every side that touches a wall.
How high should a sauna ceiling be?
For a ready-made cabin, use its listed outside height plus the manual's clearance. For a room you build, follow the heater manual, which may set a minimum room height.
What size sauna heater do I need?
Use the room-volume range on the heater's listing or manual. Work out your room's volume and pick a heater whose range includes it.
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