Single vs Double Bench Sauna: Which Layout Is Better?

Single vs Double Bench Sauna: Which Layout Is Better?

The bench layout inside your sauna determines more than just how many people can sit down. It affects the heat experience, the positions you can use, and how comfortable the sauna feels during longer sessions. Single bench (one level) and double bench (two tiers) are the two main configurations, and they serve genuinely different purposes.

Single Bench Layout

A single bench sauna has one bench at one height, usually about 16-18 inches off the floor. Everyone sits at the same level, the layout is simple, and the floor space is straightforward.

Single bench layouts are standard in smaller saunas, especially compact 2-person models and barrel saunas where the curved ceiling limits headroom for upper tiers. The bench runs along one wall (or follows the curve in a barrel) and that's it.

The main advantage is simplicity. There's more open floor space, the sauna feels less cluttered, and there's nothing to climb over or navigate around. For solo users or couples, a single bench provides everything you need.

Double Bench Layout

A double bench sauna has two tiers: a lower bench around 16-18 inches high and an upper bench around 36-40 inches high. The upper bench is where the action is. Hot air rises, so the upper tier is significantly warmer than the lower one - typically 15-30 degrees hotter depending on the sauna's size and heater placement.

This two-tier setup gives you temperature zones. If you want intense heat, sit on the upper bench. If you need a break or prefer a milder experience, drop to the lower bench without leaving the sauna. Experienced sauna users move between levels throughout a session, spending time on the upper bench to build heat and dropping down when they need to recover.

The upper bench is also where you lie down. The elevated position puts you closer to the ceiling where the air is hottest, and the bench is typically wide and deep enough to stretch out flat. Lying down in a hot sauna is one of those experiences that converts casual sauna users into devoted ones.

Single vs Double Bench: Full Comparison

The Heat Experience Difference

This is the biggest practical difference between the two layouts, and it's worth understanding why.

In any sauna, the air temperature varies by height. The ceiling area might be 200F while the floor is 120F. The temperature gradient is gradual, but it's real. In a single bench sauna, everyone experiences the same temperature - whatever it is at the bench height.

In a double bench sauna, the upper bench puts your body significantly higher in the heat column. Your head is closer to the ceiling, and the air around you is hotter. This is actually the traditional Finnish way to sauna - you sit up high where the heat is most intense. The lower bench exists so you can drop down when you need relief without leaving the room entirely.

This temperature flexibility is what makes double bench saunas better for mixed groups. Someone who likes it really hot sits on the upper bench. Someone who's new to saunas or prefers milder heat sits on the lower bench. Everyone shares the same room at a temperature that works for them.

Space and Sauna Type Considerations

Double benches need vertical space. You need enough ceiling height for someone to sit comfortably on the upper bench without hunching over. In practice, this means the sauna needs at least 7 feet of interior ceiling height, and 7.5 feet or more is ideal. Most cabin saunas and larger barrel saunas (7-foot diameter) handle this fine. Smaller barrel saunas (6-foot diameter) usually don't have enough headroom for a comfortable upper bench.

The double bench also takes up more depth in the sauna. You need the lower bench in front of the upper one, which means the sauna room needs to be deep enough to accommodate both tiers plus leg room. In a compact sauna, the double bench can make the remaining floor space feel cramped.

The Verdict

If your sauna has the ceiling height and room depth for a double bench layout, go with it. The temperature zones, the ability to lie down, and the traditional Finnish experience make it the better layout for anyone who takes their sauna practice seriously.

If you're in a smaller sauna where a double bench would be cramped or uncomfortable, the single bench is the practical choice. A well-built single bench sauna is still an excellent sauna. You just won't have the temperature flexibility or the lying-down option.

Most SweatDecks saunas come with bench configurations suited to their size. Browse our barrel saunas for models with optimized single and double bench layouts, or explore our full outdoor sauna collection for cabin models with spacious two-tier interiors.

Frequently Asked Questions

Can I add a second bench tier to an existing single bench sauna?

Sometimes. If your sauna has adequate ceiling height (7+ feet) and enough depth, a carpenter or handy DIYer can add an upper bench. Use the same wood species as the existing bench, and make sure the upper bench has at least 3.5 feet of clearance to the ceiling. It's not a huge project, but the sauna needs to have the right dimensions from the start.

Is the lower bench in a double bench sauna too cool to be useful?

Not at all. The lower bench is typically 15-30 degrees cooler than the upper bench, which still puts it at 140-165F in most saunas. That's plenty hot for a good sauna experience. Many people prefer the lower bench for longer, more relaxed sessions. It's also the right spot for beginners, children (where age-appropriate), and anyone who wants to ease into the heat gradually.

Do double bench saunas cost more?

A double bench layout itself adds modest cost - more wood for the second tier and its supports. The real cost difference comes from the fact that saunas large enough for a proper double bench layout tend to be larger and more expensive overall. If you're comparing a small single bench sauna to a large double bench cabin, yes, there's a significant price difference. But it's mostly about the sauna size, not the bench configuration itself.

Which bench should I sit on for the best steam experience?

The upper bench. When you pour water on the stones and create steam (loyly), the steam rises to the ceiling and fills the room from the top down. Sitting on the upper bench puts you right in the densest steam. This is where you feel that wave of soft heat wash over you. The lower bench gets the steam too, but it's less intense. For the full Finnish loyly experience, the upper bench is where you want to be.