Indoor / Outdoor Cube Sauna
Small Outdoor Finnish Sauna
Taxes and freight shipping calculated at checkout.
Curbside freight delivery to the continental US, priced by state at checkout. The driver sets the crate at the end of your driveway on a liftgate; you and 2–3 helpers unload it by hand from there. How delivery works
Near Fort Worth? Free pickup in Burleson, or local delivery from $120 — we bring it and unload it into your driveway or garage.
One sauna per order. Buying more than one? Please place a separate order for each.
You assemble it. Two people build the shell in about 3–5 hours with basic tools, and screws are included. See every step before you buy
- Electric heater included
- Wi-Fi app control
- Accent lighting
- Bluetooth speaker
- Canadian hemlock
- You build it: 2 people, 3–5 hours
- Delivers curbside nationwide · you unload
The Small 21 Cube is our most compact indoor/outdoor sauna. It is built from Canadian hemlock with a rounded black frame, full glass front and curved shingle roof, and made for year-round outdoor use.
Included with every sauna:
- Electric sauna heater with stones (21 Saunas heater standard, Harvia upgrade +$400)
- Wi-Fi control: set temperature and timer from your phone
- Accent lighting behind the bench backrest
- Wall-mounted Bluetooth speaker
Features:
- Our most compact size
- Canadian hemlock construction
- Full glass front and curved shingle roof
- Works indoors or outdoors
- Curbside freight delivery to the continental US
Call or text 817-440-4862 with any questions.
What's included
Every 21 Cube includes:
- 9 kW electric sauna heater with stones: the 21 Saunas 9KW Wifi Heater is standard, or upgrade to the Harvia 9KW Wifi Heater for $400. Both run on 240V single phase and need a 50A breaker.
- Wi-Fi control: set temperature and timer from your phone
- Accent lighting behind the bench backrest
- Bluetooth speaker mounted to the wall
- Two-tier Canadian hemlock benches
- Full glass front and curved shingle roof
Electrical requirements
Electric sauna heaters typically need a dedicated 240V circuit installed by a licensed electrician. [TBD: breaker size, wire gauge and heater kW for this size.]
Shipping & delivery
Ships by freight to the continental US in a wooden crate (about 90 × 44 × 44 in, 1,100–1,500 lb). Delivery is curbside: the driver lowers the crate on a liftgate at the end of your driveway, and you unpack it there and carry the pieces in by hand. Plan on 2–3 helpers.
Need more than one sauna? Please place a separate order for each one. Each sauna ships as its own freight delivery.
If we can't deliver to your address as planned, or the freight cost to your location comes in noticeably higher than the shipping charged at checkout, we'll contact you before your sauna ships. You can choose how to proceed, or cancel your order for a full refund.
Warranty & care
[TBD: warranty terms.] Wipe benches after use, leave the door open to air out, and never varnish or paint the interior wood.
Compare sizes
Find your fit
Same design, same finish — just more room as you go up.
| Spec | Small | Medium | Large |
|---|---|---|---|
| Price | $3,995 · Harvia $4,395 | $4,495 · Harvia $4,895 | $4,995 · Harvia $5,395 |
| Seats | [TBD] | Up to 4 | Up to 6 |
| Exterior (W × D × H) | [TBD] | [TBD] | [TBD] |
| Interior (W × D × H) | [TBD] | [TBD] | [TBD] |
| Wood | Canadian hemlock | Canadian hemlock | Canadian hemlock |
| Heater | 9KW Wifi heater (Harvia +$400) | 9KW Wifi heater (Harvia +$400) | 9KW Wifi heater (Harvia +$400) |
| Wi-Fi control | Included | Included | Included |
| Accent lighting | Included | Included | Included |
| Bluetooth speaker | Included | Included | Included |
| Electrical | [TBD] 240V / [TBD]A | [TBD] 240V / [TBD]A | [TBD] 240V / [TBD]A |
| Benches | [TBD] | Two-tier | [TBD] |
| Front | Full glass | Full glass | Full glass |
| Roof | Curved, shingled | Curved, shingled | Curved, shingled |
| Weight | [TBD] | [TBD] | [TBD] |
The experience
Traditional heat, the way it's meant to be.
The electric heater warms the stones and the air around you. Ladle on a little water and a soft wave of steam rolls over the hemlock benches. It's the classic Finnish sauna — no infrared panels, no compromises.
- Heater with stones for real steam
- Two-tier benches for hot and gentle zones
- Glass front keeps it bright and open
Complete your setup
Sauna accessories
Sauna stones
Coming soonBucket & ladle
Coming soonThermometer & hygrometer
Coming soonSand timer
Coming soonWhat do I need to prepare before delivery?
A level, solid, well-drained surface and a dedicated electrical circuit near the sauna. Have a licensed electrician quote the hookup ahead of time so you're ready to go on day one.
Can I put it in my garage or home gym?
Yes. Indoors, leave clearance around the unit for airflow and make sure your ceiling is tall enough. Ask us for exact clearance numbers for your size.
How long until it's hot?
Usually about 30–45 minutes, depending on heater size and outside temperature.
Can I pay over time?
If installment payments are available for your order, you'll see the option at checkout.
Talk to a real person
Questions about this sauna?
Call or text — we'll help with sizing, electrical and delivery.