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Cabin Outdoor Sauna - 4 Person

Cabin Outdoor Sauna - 4 Person

Regular price $6,299.00
Regular price $7,299.00 Sale price $6,299.00
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A stunning addition to a backyard relaxation retreat, fitting seamlessly into outdoor spaces big and small without compromising on comfort or functionality.

  • Two-level seating lets you effortlessly cycle between high heat on the top bench and lower heat on the bottom, allowing you to make your ideal sauna experience without adjusting the heater.
  • Comfortable for up to four, this sauna’s gravity venting system effectively circulates the heat, so every corner feels warm and inviting in this outdoor oasis.
  • Built from heat-treated hemlock, this sauna is naturally durable and made to withstand the outdoors with minimal maintenance.
  • Indulge in the benefits of heat therapy with a home sauna. Reduce stress, increase circulation, boost recovery, and promote overall wellness.
  • Easy-to-assemble sauna kit, customizable with multiple heater options and plenty of accessories to make your ideal at-home sauna retreat.
  • Experience Löyly — the perfect balance of heat and steam. Every one of our heaters is designed to have water poured over the rocks to make a cleansing environment, made better with essential oils.

Read Product Details

A stunning addition to a backyard relaxation retreat, fitting seamlessly into outdoor spaces big and small without compromising on comfort or functionality.

  • Two-level seating lets you effortlessly cycle between high heat on the top bench and lower heat on the bottom, allowing you to make your ideal sauna experience without adjusting the heater.
  • Comfortable for up to four, this sauna’s gravity venting system effectively circulates the heat, so every corner feels warm and inviting in this outdoor oasis.
  • Built from heat-treated hemlock, this sauna is naturally durable and made to withstand the outdoors with minimal maintenance.
  • Indulge in the benefits of heat therapy with a home sauna. Reduce stress, increase circulation, boost recovery, and promote overall wellness.
  • Easy-to-assemble sauna kit, customizable with multiple heater options and plenty of accessories to make your ideal at-home sauna retreat.
  • Experience Löyly — the perfect balance of heat and steam. Every one of our heaters is designed to have water poured over the rocks to make a cleansing environment, made better with essential oils.

Also Consider: Summit Outdoor Sauna - 6 Person

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Nov 12
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Standard Controller

$6,999$6,299

Wi-Fi Controller

$7,999$7,299

Standard Controller

$7,999$6,999

Wi-Fi Controller

$8,999$7,999

Discount Applied in Cart with Purchase of Sauna

Benefits of Contrast Therapy

  • ✓ Improve Circulation
  • ✓ Reduce Stress
  • ✓ Enhance Recovery
  • ✓ Support Mental Resilience

Product Details

Product Description

A stunning addition to a backyard relaxation retreat, fitting seamlessly into outdoor spaces big and small, without compromising on comfort or functionality.

  • Two-level seating lets you effortlessly cycle between high heat on the top bench and lower heat on the bottom, allowing you to make your ideal sauna experience without adjusting the heater.
  • Comfortable for up to four people between the two benches to gather in the collective warmth or stretch out and lounge in the extra space.
  • Small footprint, spacious interior. Compact and designed to fit into smaller outdoor areas, it provides plenty of headroom and space in front of the benches to move around inside the sauna
  • Filled with natural light from two front-facing windows and a glass door create a tranquil and airy environment inside of the sauna.
  • Air vents engineered for balanced heat cycle air naturally from just below the heater to above the top bench, circulating the heat so every corner feels warm and inviting.
  • Experience Löyly — the perfect balance of heat and steam. Every one of our heaters is designed to have water poured over the rocks to make a cleansing environment; made better with essential oils.

Built to Last & FSC® Certified

The Forest Stewardship Council® (FSC®) sets the global benchmark for responsible forest management. When you see the FSC® certification on our products, it means the wood was sourced from forests that are managed to the highest environmental and social standards—protecting biodiversity, respecting the rights of Indigenous communities, and ensuring long-term forest health.

Choosing FSC®-certified products is one way we’re helping customers invest in both wellness and sustainability.

The Benefits of Heat Therapy

A daily sauna session can help:
✔️ Boost circulation 
and cardiovascular health
✔️ Soothe sore muscles 
and enhance recovery
✔️ Reduce stress 
and improve sleep
✔️ Detoxify
through deep, purifying sweat

For more details or to purchase, call 1-800-567-8036.

Specifications

Exterior

Exterior Dimensions 5'-7"W  x  6'-6"L  x  7'-8 ½"H
Roof Size 5'-8 ½"W  x  6'-7 ¾"L
Wood Type Canadian Heat-Treated Hemlock
Wood Thickness 1 ½"
Door Material Tempered Glass w/ Wood Frame
Door Size 1'-11 ¼"W  x  5'-8 ⅛"H
Window Size 10 ⅝"W  x  4'-11"H
Weight 1,150 lbs.

Interior

Interior Dimensions 4'-8"W  x  5'-7"L  x  6'-6 ⅛"H
Interior Space 26 sq. ft.
Interior Volume 169.6 cu. ft.
Seating Capacity 4 People
Spacious For 3 People
Number of Benches 2
Lower Bench Size 1'-7 ¾"W  x  1'-5 ¾"H
Upper Bench Size 1'-11 ⅝"W  x  2'-11 ⅜"H
Head Room 3'-11 ¼"

Included with Purchase

  • Cabin Sauna (4-Person)
  • 6kW Harvia KIP heater, with upgrades available
  • Heater Stones, with upgrades available
  • Asphalt Roll Roofing & Underlay, with upgrade available
  • Towel Peg
  • Redwood Outdoors Doormat (available only with sauna purchase)
  • Traditional Felt Sauna Hat (1)

Packing & Shipping

Shipping Format Wooden Crate 
Crate Dimensions 4'-3"W  x  7'-1"L  x  2'-5"H

Heater Options & Power Requirements

We have carefully selected the very best heaters to pair with our saunas, ensuring an exceptional experience no matter which option you decide on. When making your selection, consider factors such as design, Wi-Fi versus manual control, steam type, and power requirements. Choosing the right heater is the next step in building your dream sauna oasis.
Important: All heaters must be installed by a certified electrician. We recommend obtaining at least two quotes from qualified providers.
Questions? Our Product Experts are available for help! Call us at 1-800-567-8036.

Harvia KIP

A traditional Finnish wall-mounted heater with dual manual controls, including a delay timer that can be set up to 8 hours in advance. Its split-face stones deliver gentle, classic bursts of steam.

Wattage: 6kW & 8kW

Voltage: 240V

Breaker: 30A (6kW) & 40A (8kW)

Wi-Fi: Optional upgrade with the 8kW

Mounting Type: Wall mounted

Rock Capacity: 44 lbs.

Harvia Spirit

A sleek, modern heater with a curved design and Wi-Fi control. Its open-stone design holds a generous volume of stones, delivering soft, even heat and rich steam.

Wattage: 6kW & 8kW

Voltage: 240V

Breaker: 30A (6kW) & 40A (8kW)

Wi-Fi: Standard

Mounting Type: Wall mounted

Rock Capacity: 99 lbs.

Harvia Virta

Our most powerful heater, built for frequent use and exceptional performance. This heater delivers steady heat and abundant steam with the added convenience of Wi-Fi control.

Wattage: 8kW & 10.5kW

Voltage: 240V

(10.5kW 208V 3-phase commercial model available upon request)

Breaker: 40A (8kW) & 50A (10.5kW)

Wi-Fi: Standard

Mounting Type: Floor standing

Rock Capacity: 132 lbs. (8kW) & 176 lbs. (10.5kW)

Homecraft Revive

The largest heater in our Homecraft lineup, built for the ultimate sauna experience. Producing powerful, consistent heat and generous steam when water is poured over the stones.

Wattage: 9kW

Voltage: 240V

Breaker: 50A

Wi-Fi: Optional upgrade available

Mounting Type: Floor standing

Rock Capacity: 264 lbs.

Homecraft H-Series

Built for both performance and dependability; offering a balance of power and refined design. Engineered for efficient heat distribution, simple controls and light bursts of steam.

Wattage: 9kW

Voltage: 240V

Breaker: 50A

Wi-Fi: Optional upgrade available

Mounting Type: Wall mounted

Rock Capacity: 44 lbs.

 

Heritage Design & Modern Innovation

Traditional Design, Modern Innovation 

The tradition of Sauna stretches back thousands of years and spans cultures across the world, bringing people together in restorative warmth. In Finland the sauna is a central part of daily life; it is a place for physical cleansing, mental renewal, healing, and a place to connect with community.  

At Redwood Outdoors we hold on to this heritage, making our saunas out of natural lumber, the way Finnish sauna builders have done for centuries. Ushering them into the modern day with innovative designs and contemporary materials to make the sauna lifestyle more attainable and a part of your everyday wellness routine. 

Designed in Partnership with a Finnish Sauna Expert  

Our sauna designs were developed in collaboration with Dr. Lassi A. Liikkanen, a Finnish sauna designer, author, and founder of Saunologia - a leading sauna design consulting firm based in Helsinki, Finland. He is widely recognized as a leading expert in Finnish sauna design and technology. With his guidance, we continue to refine our designs, maximize comfort and streamline performance while staying true to traditional Finnish sauna design principles. 

About Our Heat-Treated Lumber

Made of Hemlock 

Hemlock is an exceptional material for building saunas; highly regarded for being strong, durable, and moisture resistant. In hot environments, hemlock remains cooler to the touch and retains heat more effectively than cedar. All the hemlock used in our saunas is sourced from responsibly managed forests in Canada that adhere to strict environmental and social standards.  

Heat-Treated for Exceptional Durability 

Our hemlock undergoes a specialized thermal modification process to increase durability. This three-phase process begins with kiln-drying the wood, followed by heating it to temperatures above 400°F (204°C), finished by slowly cooling through a controlled steaming process. This procedure changes the wood on a cellular level, compressing its internal channels to create a denser structure. The result is a stronger material that is better protected against damage from environmental factors such as weather and insects. The natural moisture resistance of hemlock is also enhanced, minimizing swelling and warping over time.  

Heat-treated hemlock lasts longer with minimal maintenance needs, so you can enjoy your sauna for many years to come.

All Natural, Built to Last 

Our thermal modification process relies solely on heat and water—no chemicals involved. This technique increases the lifespan of your wood naturally, without the use of any additives. 

Minimal Maintenance

Exterior Sauna Maintenance

Heat-treated hemlock is highly durable; no stain or sealer is required to maintain your sauna’s structural integrity. Left untreated, the wood will naturally weather to a rustic grey over time due to sun exposure, without losing its strength.

A water-based stain can be used to maintain or change your sauna’s exterior color. Note: stains should never be used inside the sauna.

Interior Sauna Maintenance

Our heat-treated hemlock is built to withstand the hot and humid sauna environment; no sealers are required on the interior walls. In high-traffic areas such as benches and floors, applying a protective treatment is recommended to guard against dirt, sweat, and body oils.

Recommended interior treatment options include:

  • Sauna grade paraffin oil – only a light coating on the benches and floor is needed, preserving the deep natural color of the wood. We recommend sauna safe Harvia Paraffin Oil. Note: only use sauna-grade paraffin oil.
  • Supi Sauna Wax – a nontoxic treatment safe for walls, floor, ceiling and benches; Supi Sauna Wax is available in three different finishes: clear, black, and white. 

Sauna Heater Maintenance

Sauna heaters require little maintenance. Simply cleaning the heater and taking care of the rocks will keep your heater running in peak condition for years to come. 

To maintain your heater, follow these easy steps: 

  • Periodically wipe the exterior of the heater with a soft cloth and use a mild cleanser to remove any water spots if needed—we recommend Harvia Heater Cleanser.
  • Every 6 months, restack and inspect your heater stones. As you pull out the stones, look for cracks, chips and excessive wear. Remove and replace any damaged stones. 
    • Rinse the stones with warm water, lightly scrubbing any that might have slight calcium build up, letting them air dry before restacking in the heater.  
  • After 1 to 2 years, replace your heater stones. For heaters that use split-face stones, upgraded options are available, like vulcanite stones for better steam or the longer-lasting elite pro stones.

Delivery: What to Expect

Redwood Outdoors saunas and cold plunge tubs are shipped using freight delivery to ensure safe, secure transport from our warehouse to your home. Below is everything you need to know about shipping and what to expect on your delivery day.

How Redwood Outdoors Products are Shipped

Our saunas and cold plunge tubs are shipped in durable wooden crates designed to protect the product during transit.

  • With the shipment of a sauna, the heater, rocks and accessories will either arrive in a box strapped to the top of your crate or arrive separately.

We partner with multiple trusted freight carriers to ensure your order arrives safely and efficiently at your curbside. 

  • Once your shipment leaves our warehouse, you’ll receive an email with a tracking number and link to follow your delivery.  

If you’ve ordered multiple large products—such as a sauna and a cold plunge—they may arrive in separate shipments.  

Freight Delivery 

Our shipments are delivered by a large freight truck, typically equipped with a liftgate. This allows the carrier to lower the crate to ground level upon arrival.  

  • If your delivery location has limited access for large trucks—such as steep, unpaved, gated, or restricted roads—please contact our customer service team before shipment so we can review access requirements and help you prepare.  

Delivery Day

Your shipment is on the way, here's how to prepare. 

Once your order arrives at the carrier’s local depot, they will contact you to schedule a delivery appointment. 

  • Appointments are typically scheduled within 2–3 business days of arrival at the depot.  
  • Please ensure that someone is available to receive and sign for the delivery when it arrives at your home. 
    • If your heater is shipped separately, a signature will be required for that shipment as well.  

All freight shipments are curbside delivery, meaning the crate is placed at the end of your driveway or nearest accessible location.  

  • For liability reasons, freight carriers are unable to move shipments beyond the curb or into backyards, garages, or other areas of the property.  If you need help relocating your crate after delivery, we recommend arranging assistance in advance.

Questions about shipping or delivery?

Please contact us. Our customer support team is happy to help.

Call: 1-800-567-8036
Email: support@redwoodoutdoors.com

Support & Warranty

Questions? We Have Answers. 

At Redwood Outdoors, when you call, a real person is here to help. Our US-based, knowledgeable support specialists are ready to answer any question, big or small. Whether you need advice about how to set up your new sauna or how to care for your sauna after it is built, our team of experts has the answers.   

How To Reach Us 

Call: 1-800-567-8036  
Email: support@redwoodoutdoors.com 

Warranty 

Our saunas are backed by a 1-year limited warranty. For Harvia sauna heaters, we offer a 1-year warranty on heating elements and a 5-year limited warranty on other components for residential use. For Homecraft sauna heaters, we offer a 2-year limited warranty for residential use. 

For full details and terms of our product warranties, please visit: https://www.redwoodoutdoors.com/warranty 

Assembly & Manuals

Designed for Hassle Free DIY Assembly

Our saunas are built for easy DIY installation, with no cutting, modifications, or special skills required. Each kit includes pre cut, interlocking panels that fit together precisely, allowing you to assemble your sauna in just a few hours using basic construction skills.

Every sauna ships with a printed assembly manual inside the crate, tailored specifically to your model. If you’d like to preview the process ahead of time, digital assembly manuals and assembly videos are available online here.

Because our sauna designs continue to evolve, always follow the printed instructions included with your sauna during installation.

Before You Begin Your Sauna Installation

Review Instructions and Gather Supplies

Before starting your sauna build, carefully read through your assembly manual and gather all necessary supplies.

Recommended Tools

Sauna assembly requires common household tools, including:

  • Power drill with T20 ("torx") bit
  • Rubber mallet
  • Hammer
  • Two adjustable wrenches
  • Measuring tape
  • Level

Choose the Right Location

Select a stable, level location with sufficient clearance for assembly and access. Be sure the area allows for proper drainage and is within reach of your electrical connection. Thoughtful site selection helps ensure safe operation and long term durability.

Check Local Building Requirements

Depending on your location, a building permit or HOA approval may be required. Always check local regulations before starting installation.

Hire an Electrician

A trusted licensed electrician must be hired to install your sauna heater. Sauna heaters do not plug into standard outlets and must be hardwired to your electrical panel.

Build a Solid Foundation

A solid, level base is essential for the longevity and performance of your sauna.

Recommended foundation types include:

  • Concrete pad
  • Solid deck or reinforced platform
  • Compacted gravel base
  • Level stone or paver patio

The foundation must support the full weight of the sauna and all occupants.

We recommend putting down a moisture barrier such as a polyurethane sheet or epoxy sealant under the base to protect the sauna from premature wear.

Assembling Your Sauna

Preparing for an Efficient Install

Before assembling:

  • Read through the entire assembly manual and watch the assembly video
  • Verify all pieces in the sauna kit using the parts list included in the manual
  • Lay out the pieces in sections by the steps listed in the manual to streamline the assembly process

Putting the Sauna Together Piece by Piece

The following is a general overview of the sauna building process. Our sauna designs are always evolving, so please refer to your sauna assembly manual when you are ready to build.


Our customer support team is available to assist with questions before, during, or after installation.

Call: 1-800-567-8036 

Email: support@redwoodoutdoors.com


Unwind in Style

Our saunas and cold plunges bring spa-like luxury to your backyard.

The Perfect Fit

Designed for every space, built for every moment--Find your perfect sauna

Ultimate Relaxation

Where wellness meets stillness--Breathe deep, reset, and restore.

Product Assembly Video

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  • 5 stars: 18 (75%)
  • 4 stars: 2 (8%)
  • 3 stars: 2 (8%)
  • 2 stars: 0 (0%)
  • 1 star: 2 (8%)
Some of the reviews shown are from related products the merchant grouped with this one.
D
Doug Paterson
Fun to put together

While built, the electrician hasn’t been out yet to hook up the heater. Fun to put together. Instructions could be a little clearer. Some of the pictures in the manual not clear enough to definitively articulate procedure. Shingles were pretty cracked along the edges. I think I will look for a better roofing solution. Was going to order the metal roof, but it was back ordered, and I didn’t want to wait for it. Had issues with some of the screws stripping. Might want to consider adding a few extra in each bag. That’s all nitpicking. Can’t wait until it is hooked up.

P
PH
Looks great! Fun to install

Looks great! Fun to install. Works really well.

T
Trisha Zeller
Great well-built sauna

Great well-built sauna. I use it every day!

M
Mark Goldberg
Redwood outdoors Cabin sauna

We first heard of Redwood outdoors sauna's from a good friend of ours Dustin Myers in Grandville Ohio. He introduced us to fire and ice therapy and when we saw how awesome the barrel sauna was we knew we had a get a sauna from redwood outdoors! you guys have a great team there! It didn't take very long to receive our cabin sauna and it has been a great experience for my wife and so to build it together! We look forward to the years and health and wellness together!

D
Dave Van Der Linden
Redwood outdoors sauna is a great product!

I am very happy with my Redwood Outdoors sauna. I researched a lot of different sauna companies and ended up going with Redwood Outdoor because the quality looked superior. While it took a while, assemble, it was pretty straightforward; but definitely easier with two people. I am very glad I upgraded to the Harvia 8K Wi-Fi heater; it’s awesome!

The only complaint I have is that customer service is very difficult to get a hold of, especially over the phone. But they do eventually get back to you.

M
Milan
I am very pleased with my Redwood Sauna, it was easy to assemble and works great!

I am very pleased with my Redwood Sauna, great quality, easy to assemble, your customer service was great when I had questions and it works great. My family and friends use the Sauna regularly.

D
Desi Rosenfield
go up a size.

The sauna is well made, sturdy and strong.The four person really accommodates three. Given what I know now, I wish I would have purchased a sauna for 6 or 8 to have enough space for 4.
The sauna is not a build yourself. I had two contractors for a whole day plus an electrician.
But, it works so well, it is beautifully crafted and I would highly recommend the brand. Go bigger if you can.

S
Santiago Marquez
Awesome

Awesome

Hi Santiago, thanks so much for the awesome review! We’re thrilled you’re enjoying your 4-person outdoor sauna.

B
B. Allen
A Dream

Went together easily. There were a few boards we needed replaced, and the customer service was incredible, fast and easy to work with. It feels like the perfect size. Very attractive-looking sauna. Glad we went with Redwood.

Hi Bobbie, thanks so much for sharing your experience! We’re thrilled the sauna was easy to assemble, fits your space perfectly, and looks beautiful. We’re sorry a few boards needed replacing, but glad our team could make the process quick and easy. Enjoy your sauna!

A
Andy Leonard
Use it Every night

Use it Every night.
Basically a two-person, even though 4 could fit, but you don't want your sweaty thigh touching someone else's. You wanna be on the upper deck of this puppy, it's 20 degrees different than the bottom shelf. That said I appreciate it so depending on the session and goals, you can choose. Most nights, after the kids go down, my wife and I sauna, and it's our time to catch up for the day while getting a good sweat. Nothing like it.

Hi Andy, we're thrilled to hear you and your wife are enjoying your sauna nights together! Thank you for sharing your experience! Nothing beats a relaxing session after a busy day. Enjoy many more!

A
Anonymous
Amazing!

Amazing!

Thank you for your wonderful review! We're thrilled you love the sauna. Enjoy many relaxing moments!

R
RG Smith
4 person sauna is awesome!

Already enjoying it. Easy to assemble. Gets to chosen temperature quickly. Perfect for us, One on top tier, other on bottom.

Thank you for sharing your experience! We’re delighted that your sauna was easy to assemble, heats up quickly, and provides the perfect setup for both of you. We hope you enjoy many relaxing sauna sessions together! Enjoy many relaxing moments ahead!

R
RW
Thoroughly enjoying our new four person sauna! Looks great

Thoroughly enjoying our new four person sauna! Looks great, easy to operate, great views out the windows.

Thank you so much for sharing! We’re thrilled to hear you’re enjoying your new four-person sauna and loving everything from the look and ease of use to those beautiful views through the windows. We hope it brings you many relaxing sauna sessions for years to come. Thank you for choosing Redwood Outdoors!

R
Ryan Shannon
Poor craftsmanship.

Poor craftsmanship and some of the boards seemed like they were used before. There are significant gaps and the boards won’t lay level.

A
Anonymous
Sauna Excitement

I am super-excited to put this thing together!

M
Matt
Excellent product and support

The sauna kit is very well engineered and instructions were easy to follow. I was able to put this together by myself in about a day and a half, including moving all of the lumber to location. One piece came broken and a replacement was shipped to me the very next day, and on a weekend. I was very impressed.

C
Cole Myhra
Product seems great

Product seems great, and I cannot give it 5 stars due to lack of support from customer service.

J
Joshua

ABSOLUTELY LOVE IT!! Modified itfor a wood burning stove and its perfect. I used the HUUM 13 wood burning stove and its the best.

p
peter bourne
Made the right decision

The team at Redwood Outdoors are great to work with, and the sauna is working great. Between the online video and the paper docs that come in the box, the sauna was straightforward to put together. Questions I had were quickly resolved. I did a lot of research before buying this and I'm happy with the outcome.

T
Tom Devlin
Very complex to get it wired

So far, it seems way too complex to get the wiring right for the heater…… can’t believe by now that it isn’t simply a plug and play. Had a very experienced electrician work on it for 8 hours and then we could not get the control panel to turn on. He’ll be back in a few days to review and try to complete. Very disappointed that this is soooo complex.

A
Anthony Lemma
Thanks!!

Thanks!!

C
Chuck Newnham
Great Weekend Build

Great Weekend Build Project

R
Ryan
Can’t seem to deliver it

Still don’t have my sauna…

K
KENNITH
We love it and it goes well with our

We love it and it goes well with our yard