WATTA Saunas

Take $1000 off your order when you bundle Watta sauna and cold plunge!

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Traditional Finnish techniques made simple.

  • Fully Insulated – Every WATTA sauna comes with full R13 mineral wool insulation. Fire and heat resistant while keeping the heat in.

  • Included Heater – Each Sauna comes with a Harvia or Finlandia heater with knob control. Wi-Fi upgrade is available at a charge.

  • Modular Assembly – To avoid crane charges and difficult delivery, each wall comes apart then is reassembled at the final destination.

  • High Benches – Each sauna is made for the user to be high up in the heat. floating benches get the user up to 41 inches off the ground!

  • Customizable to You – Adaptable options and add-ons let you shape your sauna experience to your lifestyle.

Available Designs

A small black wooden sauna with a glass door, situated outdoors on a rainy day. The shed's roof is corrugated metal, and there's a person in a gray hoodie reflected in the door's glass.
An outdoor cold tub with a brown cover situated in front of a black wooden sauna with a partially open door and a shower head attached to the side. There are trees and bushes in the background, and a concrete patio with textured mats.

FRONT DOOR

Gallery
A small wooden sauna with a slanted roof and a door, situated on gravel ground with a background of tall trees and a dark night sky.
Empty black wooden sauna with a glass front, situated outdoors on a concrete surface, with trees and a lawn in the background.

SIDE DOOR

Gallery

Available Sizes and Pricing

Dimensions displayed are interior. dimensions don’t include the cedar 2 inch layer, so 6 ft wall is actually 5ft 10in.

5x5 or 6x4

$10,000

2–3 people. This size is ideal for couples or small families doing solo or two-person sauna sessions. It’s a great introduction to sauna bathing and a solid option if you’re working with limited space. Three people can fit comfortably if one uses the lower bench or if you don’t mind getting a little close.

— 4.5 kw heater

6x5 (popular)

$13,000

3–5 people. This size is a big step up, allowing the full 6-foot bench to be used comfortably. You can seat three people on the top bench and two on the lower. It’s the most efficient layout for maximizing top-bench seating and overall capacity without oversizing the sauna.

— 6kw heater

6x6

$15,000

6 people. This is the largest size WATTA offers and the only configuration with dual-tier floating benches. Three people sit comfortably on the upper bench and three on the lower, following the golden rule of 24 inches of bench space per person.

— 8kw heater

Features

Features

Construction site with wooden frame and yellow insulation material on a blue plastic sheet, surrounded by wires and tools.

  • With R13 mineral wool insulation batts and a full 2×4 stud frame, WATTA saunas do an excellent job of retaining heat—creating a less radiant, more enveloping heat experience. Mineral wool is the industry standard for saunas, offering strong fire resistance and excellent moisture performance.

A construction site showing a wooden deck being built outdoors, with tools and materials like a hammer, power drill, and measuring tape on the partially assembled deck. The background includes a wet basketball court and some scattered leaves.

  • An aluminum foil moisture barrier paired with 1/4-inch cedar furring strips ensures moisture doesn’t enter the walls or become trapped behind the interior cladding. Western Red Cedar tongue-and-groove is then fastened to the furring strips—a naturally moisture- and rot-resistant wood well suited for sauna environments.

    For an upgrade, clear Japanese cedar is available for $1,000, offering a striking, uniform appearance with zero visual imperfections.

Close-up of a black wooden surface with a round metal ventilation cover, with an outdoor garden and trees in the background.

  • The sauna features two vents: one located low near the heater and an adjustable vent in the upper, opposite corner near the user’s head. This classic, proven vent placement keeps fresh air circulating and the oxygen level high throughout each session.

    The cedar floor is built with 1/4-inch gaps, allowing settled air and moisture to naturally escape. With this setup, you can expect the sauna to dry completely within about an hour after use.

Two men are working on building a wooden outdoor structure, likely a small shed or sauna during daytime. They are focused on attaching or assembling wooden panels, with tools and materials visible around them.

  • Did you know delivery and crane service from some sauna companies can cost upward of $8,000? I build my saunas with modular walls that come apart, allowing them to be transported by truck or trailer with just myself and a few helpers.

    Because of this, delivery costs are significantly lower.

A person is standing on a wooden plank while wearing dark work boots and dark pants. The photo is taken from their perspective, looking down at their feet. In the background, there is a partially constructed wooden frame and some tools on a surface, on what appears to be a sports court with green and white lines.

  • The floor in your WATTA sauna is built from cedar decking with 1/4-inch gaps, allowing for proper drainage, moisture resistance, and a natural ventilation path for lower, stale air. It’s also a major advantage for modular delivery—cedar is significantly lighter than concrete, making transport and installation far simpler.

Interior of a sauna with wooden walls and a heating stove with rocks.

  • The Harvia KIP series has been a go-to for traditional saunas for as long as it’s been available in the United States. These heaters warm up quickly, hold a generous amount of rocks, and are built to last. They’re also Underwriters Laboratories (UL) listed, which is a major plus for permitting and inspections.

    Your sauna also includes warm, under-bench LED underglow lighting to create a calm, relaxing atmosphere.

What You’re Getting.

    • Electrician required

    • WATTA is not responsible for providing electrical work

    • Decide on whether you want it permitted/inspected or not

    • 240V dedicated circuit

    • Minimum wire requirements

      • 4.5kw 10/3

      • 6kw 10/3

      • 8kw 8/3

    • submit photo/video of where sauna goes and route from driveway to location

    • give destination of house and miles from the WATTA shop.

    • WATTA will then decide if there is a charge for delivery and what would be fair for the task at hand.

    • A delivery date and rental vehicle will be scheduled once sauna is completed.

    • Delivery takes ~ 2-5 hours

    • Electrician comes at later date and sets up heater and lights. (they or the customer are responsible for placing rocks in heater and setting up thermometer)

    • Sauna Body

    • Heater

    • Led Light Strip

    • Led Driver

    • Top Floating Bench

    • Bottom Standalone Bench

    • Every Watta Wellness sauna includes a one-year limited workmanship warranty on the sauna structure and installation.

      • This covers the walls, floor, roof, benches, door, trim, vents, and heater mounting as installed. If a covered issue arises within the first year due to a build or installation defect (not misuse, modification, or neglect), I’ll repair or correct it at no cost.

    • Sauna heaters and controls are covered by the manufacturer’s warranty only.

      • If a heater or control component fails, I’ll help you identify the issue and guide you through the manufacturer’s warranty process, including locating model and serial numbers and coordinating replacement parts when applicable.

    • After the first year, I’m still here to help — you can reach out directly, and I’ll assist with troubleshooting, ordering replacement parts, or coordinating service as needed. The customer is responsible for the cost of replacement parts and any labor after the initial warranty period.

    • Most components are designed for straightforward replacement. Installation and electrical work are the customer’s responsibility, but I’m always available to assist virtually to walk through the process and make sure everything is handled safely and correctly.

  • The time it takes to complete a sauna once starting is 4 weeks. Check in with Kolby to see where you can hop in the list and what the current lead time is looking like.

Front Door Layout:

  • Your WATTA Sauna with the front-door layout is designed to look great in any outdoor setting, highlighting the cedar fascia and its clean, substantial presence. The large glass door provides an open viewpoint and makes entry and exit easy and comfortable.

    With the lower back wall housing the bench, your body remains in the heat zone while your head stays out of an extreme heat pocket, creating a more balanced and less intense experience. With the back wall at approximately 6'6" and the front at around 7', the top bench sits about 38 inches off the ground—offering generous headroom and a comfortable, elevated seating position.

A newly constructed black wooden outdoor shower or changing booth on a concrete patio surrounded by garden plants and trees, with a house partially visible on the left and rain droplets visible.
Black outdoor shower with wooden accents, mounted on the side of a sauna, with a reflective glass door showing a backyard and sky.
A backyard scene with a black outdoor shower, a grassy lawn, a stone wall, a wooden sauna with an open door, and trees with bare branches, in the late afternoon sunlight.
The image shows the entrance of a sauna room illuminated with warm lighting, with a visible interior made of wood. The exterior wall appears to be made of dark material, possibly metal or painted wood, and includes an electronic control panel showing
A black wooden sauna with a corrugated metal roof outdoors. There are trees with no leaves, a garden, and a pathway with rocks in the background, in a cloudy, rainy setting.
A person inside a small black wooden sauna with a glass door, sitting on a bench, surrounded by trees and a house with a window nearby.
View through a glass door showing a patio with stone flooring, muddy ground, and a lush garden with grass, shrubs, and a pond in the background.
Interior view of a sauna with a wooden wall and floor, a black bucket, and a ladle on the floor. The sauna door has a handle and a lock.
Close-up of a black wooden exterior wall of a building with a partly visible roof and a small vent, seen from below during rainfall, with a rain-drenched surface.
A young man sitting inside a small, wooden sauna with a glass door, wearing colorful swim trunks, in an outdoor setting.
An outdoor sauna or shower shed in black with a partially open door showing wood interior, attached to a house in a backyard with trees and shrubs.
Wood-paneled sauna interior with a glass door looking out to a foggy yard with trees, a pond, and outdoor structures.

Side Door Layout:

  • The side-door layout with a back-to-front sloping roof is designed to create the best possible heat experience. The bather sits high on the back wall, fully immersed in the heat zone above the rocks where the hottest air naturally collects.

    The large front window is made from 1/2-inch tempered glass, approximately 40" x 36", and is built to withstand sustained high temperatures. The side door is intentionally smaller than typical—65 inches tall and 24 inches wide—to help minimize heat loss.

    If you’re after a true Finnish sauna experience and genuinely love high heat, this layout is hard to beat.

A small wooden sauna with a large window and a door, built on concrete blocks in a backyard with gravel ground, trees, and neighboring houses visible.
A small wooden sauna with vertical siding, a sloped roof, and a door with black hinges, situated on gravel ground with trees and a blue sky in the background.
A small black wooden structure with a window, set outdoors among trees, with construction materials and tools nearby.
Interior of a small wooden sauna or room with wooden benches and walls, a small metal heater in the corner, and some electrical cords on the floor.
Black wooden outdoor sauna with a glass front, interior lighting, located on a green sports court, with trees and a ladder in the background.
A tennis court with a backboard and net, surrounded by trees, with a small wooden structure and a black sauna, and a basketball hoop on the back of the shed.
Wooden outdoor sauna with a door, black hinges, and a handle, set on gravel at night.
Wooden room with a square window showing a backyard with green grass, trees, a blue house, and two people standing outside.
Wood-paneled interior of a small sauna with a window, a heater, and wooden benches.
Interior of a small wooden room with finished wood paneling on the ceiling and walls, a door with a simple handle, and a built-in bench or seating area along the wall.
Wooden sauna cabin interior with a bench, wooden walls, and a heater in the corner.

Delivery Day!

A man in a brown jacket and tan pants walking beside a black utility trailer on a gravel driveway, with tree branches scattered on the ground in front of him. In the background, there are tall trees and a house with green siding and white windows, an
Two men are installing a large wooden panel on the back of a truck outdoors in a wooded area. One man wears a brown coat and yellow gloves, the other wears a gray jacket and glasses.
A small black trailer attached to a pickup truck with construction materials and a partially built wooden structure loaded on it, set in a wooded area with tall trees and sunlight coming through.
People unloading materials from a truck onto a driveway, with a large tree and residential houses in the background.
Four men are carrying a large wooden piece outdoors in a backyard with trees and bushes, under a clear blue sky.
A small wooden deck with light-colored planks and black border, elevated on concrete blocks, surrounded by a gravel yard, with a wooden fence in the background.
Four men work together outside to assemble a large wooden door or wall panel on a gravel yard with a wooden fence and trees in the background.
Two men working outdoors on a construction project with a wooden structure, surrounded by a garden and fence, under a clear blue sky.
Three people working on a construction project outdoors, installing a concrete slab on a gravel surface, with wooden framing visible and trees in the background.
Two men working together to install a wooden fence outdoors. One man, wearing glasses and a gray hoodie, is holding a tool and observing as the other, wearing a gray hoodie and beige pants, is using a power drill to secure the fence panels.
Two men working on a wooden structure outdoors at dusk, with trees and a dark sky in the background.
Four people working together to assemble a small wooden structure outdoors at night, with a large evergreen tree in the background.
Two men building a small wooden shed outdoors at night, with one hammering nails and the other measuring or aligning the wood.
Group of people working together to install or build a small wooden structure outdoors at night.
A small wooden shed with a window, two men sitting inside, and construction materials around it. The background features a large evergreen tree at night.

Personalize Your Sauna

These paid options help elevate your sauna experience but are by no means required!

Interior of a small wooden sauna with a bench, heater, and a large window showing an outdoor landscape.

Japanese Clear Cedar

The Clear Cedar upgrade uses premium, knot-free boards that stay smoother, more stable, and more visually consistent over time, giving the sauna a cleaner, high-end interior with fewer imperfections. It’s preferred vs. the regular knotty Western Red Cedar because it resists warping and cracking better than knotty lumber and delivers that classic, spa-quality look that elevates the entire sauna experience.

$1000

A digital alarm clock displaying 18:54 (6:54 PM) on a black background, mounted on a dark textured wall, with Wi-Fi, temperature, clock, and other icons illuminated below the time.

Harvia Wifi upgrade

The Harvia Xenio WiFi heater upgrade lets you control your sauna remotely from your phone, so it’s hot and ready exactly when you want it. It’s preferred for the convenience, precise temperature control, and modern interface that makes daily sauna use effortless and consistent.

$1000

A man taking an outdoor shower wearing colorful swim trunks, with his hands on his head, standing on a stone patio surrounded by greenery.

Outdoor Shower

The outdoor shower addition gives you a clean, refreshing rinse before or after your sauna, keeping the cold plunge water and sauna cleaner. It’s a favorite because it completes the sauna experience and adds everyday practicality without needing a full indoor setup.

$250

A wooden fence with a shadow of a basketball hoop and net cast on it, against a blue sky with some clouds and trees in the background.

Exterior Cedar Siding

The exterior cedar siding upgrade gives the sauna a natural, timeless look while holding up exceptionally well to moisture and weather. It’s preferred for its durability, rot resistance, and the way it ages beautifully over time, especially in outdoor environments.

$2000

Two young men working on wooden boards outdoors, with a clear blue sky and trees in the background.

Length Extension

WATTA Saunas are about 2 inches smaller on the interior than the listed dimensions. That’s because the measurements are based on the stud lengths, and once we add the cedar interior, you lose about an inch on each wall. If you want, I can extend the length or width to hit your exact interior size. Just know that even a small increase can mean I have to jump up to the next size of cedar order, which raises the cost quite a bit. To keep it simple, any added length or width is $250 per inch.

$250 per inch

Ready for your order or have more questions?

Get a Quote!
Wooden frame structure under construction outdoors with grass, trees, and cloudy sky in the background.