Types of DIY Sauna Kits
Every sauna in this collection ships as a kit. That means pre-cut lumber, hardware, benches, a door, and instructions. You provide the foundation, basic tools, and a friend. The differences come down to style, location, and heat source.
Barrel sauna kits are the most popular entry point for outdoor builds. The curved stave construction sheds rain and snow naturally, heats quickly because there's less dead air inside, and looks right at home in most backyards. Dundalk's Canadian Timber barrels use Eastern White Cedar, while SaunaLife's ERGO barrel series features ergonomic interior benches and Thermo-Spruce construction. Both brands ship everything you need to assemble in a single weekend. If you're comparing shapes and sizes, the outdoor barrel sauna collection breaks it all down.
Cabin and cube kits give you flat walls, full standing height, and proper two-tier bench layouts. Cabin-style kits from Dundalk (the Georgian and Granby) and True North look like miniature Finnish saunas you'd find lakeside. SaunaLife's CL-series cube kits take a more architectural approach with glass fronts and clean lines. Cubes work particularly well as statement pieces on a patio or deck. You can compare all the glass-front and flat-wall options in our cube sauna lineup.
Pod sauna kits split the difference between barrel and cabin. Compact footprints, distinctive rounded shapes, and easier placement on smaller properties. The SaunaLife G3 and Dundalk MiniPOD are two of the most popular pod kits we carry.
Indoor sauna kits range from infrared cabin kits that snap together in under two hours to traditional kits like the SaunaLife X2 that install inside a spare room, basement, or garage. Most indoor infrared kits from SunRay and Finnmark are plug-and-play on a standard 120V outlet, so you don't need an electrician. Traditional indoor kits require a dedicated 240V circuit.
This collection sits within our broader home sauna catalog, which includes pre-assembled models and custom options alongside these kits.
How to Choose the Right Kit
Indoor or outdoor?
Start here, because it narrows everything else. Indoor kits work in basements, spare bedrooms, bathrooms, and garages. You'll need a room that can handle heat and moisture, but the build itself is simpler since the structure is already enclosed. Outdoor kits require a level foundation (gravel pad, concrete slab, or a rated deck) and potentially an electrical run from your panel to the sauna site. If you're leaning outdoor, our outdoor sauna collection covers every style and size.
Heat type matters more than you'd think
Traditional sauna kits use an electric or wood-burning heater to heat the air to 150–185°F. You throw water on the stones for steam (loyly). Infrared kits use panels that heat your body directly at lower air temperatures (120–150°F). The experience is fundamentally different. If you want the classic Finnish sauna feel with steam and high heat, go traditional. If post-workout recovery at a more comfortable air temp is the priority, infrared sauna kits are worth a look. Finnmark's Trinity series even combines both heat types into a single hybrid cabin.
Size it for how you'll actually use it
Manufacturer capacity ratings are generous. A "4-person" sauna comfortably seats two adults who want elbow room, or three who don't mind being close. If you plan to use it with a partner or host friends, go one size up from what sounds right. The biggest regret we hear from customers is buying too small.
Wood species
Cedar is the classic sauna wood and comes in two main varieties. Western Red Cedar (used by SunRay and Kohler) is naturally resistant to moisture, smells great, and stays cool to the touch. Eastern White Cedar (Dundalk's signature) handles freeze-thaw cycles particularly well and is grown specifically for northern climates. Thermo-treated spruce and aspen (SaunaLife, Finnmark) go through a high-heat kiln process that improves dimensional stability and moisture resistance without chemicals. Hemlock is a budget-friendly option common in SunRay's indoor kits. All of these perform well in sauna conditions, so the choice comes down to aesthetics, climate, and budget.
Assembly difficulty varies by style
Indoor infrared kits are the easiest. Snap-together panels, a screwdriver, and 30 minutes to 2 hours. Outdoor barrel kits take 4–8 hours with two people and basic hand tools. Cube and cabin kits are modular panel systems that typically take 2–4 hours for smaller models and up to two full days for larger builds like the SaunaLife G4 or Dundalk Georgian. None of these require carpentry skills. If you can assemble heavy furniture, you can build a sauna kit.
Brands We Carry
SaunaLife covers the widest range of outdoor kit styles: ERGO barrels (E6, E7, E8), glass-front barrels (EE-series), cubes (CL-series), pods (G3), and traditional cabins (G4, G11). Thermo-Spruce and Nordic Spruce construction across the line. If you're looking for a modern design with glass features, SaunaLife is usually where you'll land.
Dundalk LeisureCraft builds everything in Ontario, Canada from Eastern White Cedar. Their barrel, cabin, and pod kits are designed specifically for harsh winters, and the wood is naturally resistant to rot and moisture. The Georgian cabin and Harmony barrel are long-standing favorites for anyone who lives somewhere that actually gets cold.
True North offers barrel, pod, and cabin kits in Pine, White Cedar, or Red Cedar with honest construction and competitive pricing. The Schooner barrel seats up to 8 and is one of our most reviewed outdoor models.
SunRay is the indoor kit specialist. Their traditional and infrared models come in hemlock or red cedar and are among the most affordable kits we carry. Finnmark Designs focuses on full-spectrum infrared and hybrid kits built from Thermo-Aspen with integrated red light therapy panels. And Kohler's C1 and C2 kits bring bathroom-grade engineering to the sauna space at a premium price point.
What's in the Kit and What You'll Need
Every kit ships with the sauna structure (pre-cut lumber or panels), benches, a door, hardware, and assembly instructions. Most outdoor traditional kits don't include a heater, and that's intentional. It lets you choose between electric and wood-burning, and pick the right size for your specific room volume. We carry full sauna heater ranges from Harvia, HUUM, and Saunum, and each sauna product page lists verified heater pairings so you don't have to guess at compatibility. Indoor infrared and hybrid kits from SunRay and Finnmark include integrated heating panels, so the heater question doesn't apply.
You'll need to supply a level surface for outdoor kits (gravel pad is the easiest DIY option), basic hand tools (drill, level, tape measure, rubber mallet), and an electrical connection for electric heaters. Most require a dedicated 240V circuit on a 30A or 40A breaker. A licensed electrician should handle all electrical work. Each product page lists the exact electrical specs so your electrician knows what to prepare. For a full breakdown, read our guide to sauna electrical requirements.
If the idea of picking a heater separately feels overwhelming, our heater packages bundle the heater, stones, and controller into one purchase. Pair any outdoor kit with the right package and you've got a complete sauna with a single order.
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