Cube Saunas: Prices and Sizes

A cube sauna has flat walls, a flat roof and usually a full glass front. It gives more headroom than a barrel and a more modern look.

By Caleb Whitaker Prices checked November 12, 2026

Short answer

Outdoor cube saunas listed from $3,990 for a 2 person SaunaLife CL3G to $10,990 for an 8 person model with a changeroom, on November 12, 2026. Watch the heater line: SaunaLife cubes ship without a heater, while Almost Heaven's include one.

Cube sauna prices

Outdoor cube saunas, lowest price first
Brand	Model	Seats	Listed price	Heater
SaunaLife	CL3G	2	$3,990	Not included	Visit website
Redwood Outdoors	Duo	2	$4,899	See seller	Visit website
Redwood Outdoors	Solo	1	$4,999	See seller	Visit website
Almost Heaven	Blackwater Mini-Cube	1 to 2	$5,878	Included	Visit website
SaunaLife	CL4G	3	$5,940	Not included	Visit website
SaunaLife	CL5G	4	$5,990	Not included	Visit website
Redwood Outdoors	Summit	6	$7,999	See seller	Visit website
Almost Heaven	Blackwater	4	$9,860	Included	Visit website
SaunaLife	CL12GCP (with changeroom)	8	$10,990	Not included	Visit website

SaunaLife prices from two authorized retailers on November 12, 2026. One retailer adds $950 shipping to the CL3G. Redwood Outdoors listed the Duo at two prices on the same day. Almost Heaven prices from November 11, 2026.

SaunaLife cube sizes and heaters

SaunaLife cube line, published sizes and heater pairings
Model	Seats	Footprint	Suggested heater
CL3G	2	49.6 x 43.2 in, 75.4 in headroom	HUUM Drop 4.5 or Harvia KIP45
CL4G	3	77.2 x 41.3 in	HUUM Drop 7.5 or Harvia KIP60
CL5G	4	77.2 x 55.1 in	HUUM Drop 7.5 or Harvia KIP60
CL7G	Up to 6	See seller	HUUM Drop 9 or Harvia KIP80

Add a heater (about $954 to $1,258 for a Harvia KIP, $1,334 to $1,751 for a HUUM Drop) and an electrician. See Harvia and HUUM prices.

Worked total: 2 person cube

SaunaLife CL3G, all-in estimate
Line	Cost
Sauna kit	$3,990
Shipping (one retailer)	$950
Heater, Harvia KIP 4.5 kW	About $954
240V circuit	$250 to $1,500
Total before base	$6,144 to $7,394

Cube, cabin or barrel

Cube: full headroom and a glass view. Large glass loses more heat, so size the heater up in cold climates.
Cabin: flat walls, more bench layouts, less glass. See cabin saunas.
Barrel: the lowest prices. See barrel saunas.

What a glass front changes

Most cube saunas use a full glass front. Glass lets in light and a view, and it loses heat faster than solid wood. SaunaLife's pairings step the heater up as the cube grows, from a 4.5 kW heater in the 2 person CL3G to 7.5 kW in the 3 and 4 person models. In a cold winter climate, ask the seller whether to size up.

Base and site

Cubes need a flat, level base: concrete pad, pavers on compacted gravel or a deck built for the weight.
Plan the electrical run before the sauna arrives. The heater circuit is usually the biggest install cost.
Leave room to walk around the cube for maintenance. See outdoor sauna installation cost.

Shipping and delivery

Check shipping before you compare prices. One retailer added $950 to ship the SaunaLife CL3G, which is almost a quarter of the kit price. Ask whether the delivery is curbside, and how many people it takes to move the parts.

Who a cube suits

Buyers who want a modern look and full standing headroom.
Small yards, since the 2 person CL3G footprint is about 50 x 43 inches.
Anyone who wants a view from the bench.

Just for one or two people? See 2 person outdoor saunas.

Common questions

How much is a cube sauna?

From $3,990 for a 2 person kit without a heater to $10,990 for an 8 person model in our check.

Do cube saunas come with a heater?

It depends on the brand. SaunaLife cubes are sold without one. Almost Heaven cubes include one.

Are cube saunas better than barrel saunas?

They give more headroom and a modern look. Barrels cost less for the same number of seats.

What size heater does a 4 person cube need?

SaunaLife pairs its 4 person CL5G with a 7.5 kW HUUM Drop or a 6 kW Harvia KIP. Follow the maker for your model.