Your Complete Outdoor Sauna Guide

Not every sauna shape is just about looks. The design affects how heat circulates, how much space you need, and how the sauna weathers over time.

Barrel Saunas

The barrel sauna is the most recognized outdoor sauna shape in North America, and there's good reason for it. The curved walls create a natural convection loop - hot air rises to the top of the barrel, rolls along the ceiling, and circulates back down. That means a barrel sauna heats up faster and more evenly than a rectangular room of the same volume, because you're not wasting energy heating dead space in square corners.

Barrel saunas typically come in 6-foot, 7-foot, and 8-foot lengths with a 7-foot diameter. The staves are 1.5 inches thick, held together by marine-grade aluminum bands with stainless steel tightening hardware. They sit on solid wood cradles. Most can be extended with a front porch for cooling down or a changeroom with benches when the sauna sits farther from the house.

Cabin Saunas

The traditional rectangular cabin sauna is what most people picture when they think of a Finnish sauna. Solid tongue-and-groove log walls joined with dovetail corners give you a building that's genuinely sturdy - this is proper joinery, not a prefab shed.

Cabin saunas offer more interior flexibility than barrels. You can configure L-shaped bench layouts, add windows on one or both sides of the door, and choose between one-tier and two-tier seating. They work well tucked against a fence or positioned as a freestanding structure. Indoor cabin saunas use the same construction and bring the experience inside your home or basement.

POD Saunas

The POD sauna has an organic, rain-drop shape that gives you noticeably more headroom than a barrel - a real difference when you're sitting on the upper bench. The curved roof sheds snow and rain naturally, and the wider interior feels more spacious even in smaller models.

POD saunas require a roofing finish on the outside - either cedar bevel siding or shingles - which adds an extra step during assembly but gives you more control over the final appearance. The mini POD is a compact version designed for tighter spaces without sacrificing the distinctive shape.

Modern Cube Saunas

If a barrel sauna is the cottage classic, the cube sauna is its contemporary counterpart. These modular designs feature large glass panels - bronze tempered, mirrorpane, or semi-privacy options with cedar slats - that let you watch the snow fall or the sun set while you're sitting in 190°F heat.

Cube saunas are fully insulated with 3-inch EPS foam (R-value of 11.25) in the walls, floor, and roof. The exterior can be finished in black metal siding or natural cedar. Benches are 20 inches wide - wider than most traditional saunas - and panels can be customized to mix solid wood and glass in whatever configuration suits your space.

Which style is right for you?

Barrel saunas are the best all-around choice for backyards and cottages. Cabin saunas offer the most interior space and layout flexibility. POD saunas bring extra headroom and a distinctive look. Cube saunas suit homeowners who want modern design with large glass views.

The wood your sauna is made from isn't just an aesthetic choice - it affects durability, aroma, heat retention, and how much maintenance you'll do over the years.

Western Red Cedar

This is the gold standard for outdoor sauna construction. Western red cedar grows along the coast of British Columbia and is naturally rich in thujaplicins - oils that make the wood resistant to moisture, decay, insects, and fungal growth without any chemical treatment. When heat hits cedar, it releases a warm, woodsy scent that most sauna users describe as one of their favourite parts of the ritual.

Cedar comes in two grades: clear cedar with minimal knots for a clean, uniform look, and knotty cedar with visible knots for a more rustic character. Both grades are the same species with the same durability - the choice is purely aesthetic. The Dundalk Collection uses premium western red cedar in both clear and knotty options, sourced from certified sustainable lumber mills in British Columbia and Ontario.

Eastern White Cedar

White cedar is lighter in colour with tighter, more refined knots. It's sourced from Ontario mills and offers the same natural resistance to moisture and decay at a more accessible price point. It grows closer to where most Canadian saunas are manufactured, reducing shipping costs and lead times. The Canadian Timber Collection uses eastern white cedar - a strong choice if you want an authentic cedar sauna without the premium price tag.

What About Other Woods?

You'll see hemlock, spruce, and pine in some imported saunas. These species lack cedar's natural rot resistance and typically require chemical treatment to survive outdoor conditions. They also don't produce the same aromatic experience. For a sauna that lives outdoors year-round in a Canadian climate, cedar remains the strongest choice.

The heater is the heart of your sauna, and the choice between electric and wood-burning changes the experience more than any other decision.

Electric Sauna Heaters

Electric heaters are the most popular choice for backyard saunas. They run on a 220-volt, 40-amp circuit - the same electrical requirements as a clothes dryer. You flip a switch or set a timer, and the sauna reaches 190°F in 30 to 45 minutes depending on outdoor temperature and sauna size.

Every electric heater uses the traditional rock-and-steam method. A bed of sauna stones sits on top of the heating elements, and you pour water over the rocks to create löyly - the burst of humid steam that's central to the Finnish sauna tradition. Wall-mounted models save floor space in smaller saunas, while floor-standing models suit larger interiors. Some offer Wi-Fi controls for preheating from your phone. Always verify ETL or ULC certification before purchasing - the heater only draws power while you're using it, unlike a hot tub that runs continuously.

Wood-Burning Sauna Stoves

A wood-burning stove brings something electric can't replicate: the crackle of a fire, the ritual of building it, and the ability to run your sauna completely off-grid. No electrical connection needed. Light a fire and you're soaking in heat within an hour, with heat-up times of 45 to 75 minutes.

Wood-fired heaters use the same rock bed as electric models - you still get löyly by pouring water over the stones. Stainless steel models with glass doors let you watch the fire from inside. Chimney kits run the flue through the back wall. Maintenance involves clearing ash periodically and inspecting the chimney each season.

The practical question

If your sauna is within 30 feet of your electrical panel, electric is the simplest choice. If you're building at a remote cottage, off-grid property, or you simply love the ritual of fire, wood-burning is worth the extra effort.

Most outdoor saunas ship as pre-fabricated kits. The staves, benches, door, heater platform, and hardware arrive on a pallet with detailed assembly guides. If you've tackled a deck, shed, or furniture build before, a sauna assembly is well within reach.

Two people can assemble a barrel or cabin sauna in a single weekend. Cube saunas with insulated panels typically take about eight hours with three people. No specialized carpentry skills are required - but you should be comfortable reading assembly drawings and working methodically through a step-by-step process. For walkthroughs on specific models, our YouTube channel has assembly videos covering most of the lineup.

Tools You'll Need

The one step that does require a professional: electrical. The heater connection must be done by a licensed electrician. This is a code requirement across Canada, and skipping it voids most warranties. Budget $300 to $800 for the electrical hookup depending on how far your sauna sits from the panel.

Wood-burning saunas skip the electrician entirely. Assemble, load the stove, run the chimney, and you're ready to fire.

Concrete pad is the most permanent solution. A 4-inch slab gives you decades of stability. This is the preferred choice for cube saunas with insulated floors.

Crushed gravel (3/4-inch clear stone) compacted to 4 inches works well for barrel and cabin saunas. It drains naturally and is easy to level. This is the most popular choice for backyard installations.

Patio stones or interlocking pavers create a clean, level surface. Make sure they're set on a compacted gravel base so they don't shift over time.

Wooden deck works if the structure can handle the weight. A barrel sauna can weigh 1,500 to 2,500 pounds depending on size and wood type. Verify your deck's load capacity before installation.

The ground beneath should slope slightly away from the sauna so water drains clear. Never place a sauna directly on grass or bare soil - moisture will wick up into the wood and accelerate decay.

Two-tier benches are standard in most outdoor saunas. The upper bench sits in the hottest air (heat rises), typically 15 to 25°F warmer than the lower bench. Experienced sauna users sit on top; newcomers or those who prefer gentler heat sit below.

Signature bench upgrades replace flat benches with curved seats, integrated backrests, and a finished floor - a noticeable comfort improvement for longer sessions.

Lounge benches are available in larger barrel saunas (7-foot diameter, 7 or 8-foot length) and let you stretch out fully. This is the closest you'll get to lying down in a barrel sauna.

L-shaped bench layouts are available in cabin and cube saunas, maximizing seating along two walls. Cube saunas offer 20-inch-wide benches - about 4 inches wider than standard - which makes a surprising difference in comfort when you're sitting for 15 to 20 minutes.

Use towels on benches during every session. It protects the wood and absorbs sweat, making cleanup simple.

Not all outdoor saunas are built the same, and the differences aren't always visible in photos. Here's what separates a sauna that lasts decades from one that disappoints within a few years.

Wood thickness matters. Barrel sauna staves should be at least 1.5 inches thick. Thinner wood means less insulation, faster heat loss, and shorter lifespan. Ask for the exact measurement.

Hardware quality is a tell. Marine-grade aluminum bands and stainless steel hardware resist corrosion in wet, high-heat environments. Zinc-plated steel will rust. Check what's holding your sauna together.

Canadian-made vs. imported isn't about patriotism - it's about the wood's journey. Cedar sourced and manufactured in Canada avoids the long supply chains, extended storage, and climate transitions that can stress wood before it ever reaches your backyard.

Warranty terms reveal confidence. A 5-year warranty on materials and workmanship is what LeisureCraft offers on its premium lines. Three years is reasonable for more affordable collections. Read the fine print - does it cover parts only or labour too?

Heater certification is non-negotiable. ETL, ULC, or CSA certification means the heater has been independently tested for safety. Never install an uncertified heater.

Ask about assembly support. Quality manufacturers provide detailed assembly guides, videos, and responsive support. If a company can't show you exactly how their sauna goes together before you buy, that's a red flag.