A poster tolerates 100 degrees about as well as an ice cream cone tolerates a sunny beach. Yet it’s around the sauna that Swedish homes are undergoing the most renovations this year, and the question of what to put on the wall comes up as soon as the paneling is up. The answer is rarely what you’d expect. The finest poster should almost never hang in the hot room, but rather in the entry room, dressing area or relaxation nook where the body actually unwinds. That’s where the eye rests longest, where you sit still for twenty minutes with a towel around your shoulders, and where art really makes a difference.
Quick facts: Finland’s sauna culture was added to UNESCO’s list of the intangible cultural heritage of humanity in December 2020. Finland has around 3.2 million saunas, and nearly 90 percent of the population takes a sauna at least once a week. In Sweden, 13 percent take a sauna at least once a month, according to a survey by Svenskt Trä – while global search interest in saunas rose 108 percent between April 2021 and March 2025.
Why the poster shouldn’t hang in the hot room – and where it makes the most difference
A traditional sauna reaches 70 to 100 degrees, and the humidity swings from dry to almost saturated every time someone throws water on the stones. That’s two simultaneous threats to paper. Heat makes the fibers move, moisture makes them swell, and when the room cools overnight, everything shrinks back again. After one season, the sheet will have started to warp into waves behind the glass. Ink pigments are also sensitive to prolonged heating, and the glue in mat boards and taped hangings softens well below 100 degrees.
Add to that the fact that the benches are high and the hottest air sits beneath the ceiling, which is exactly where you’d otherwise want to hang something to look at. The conclusion is easy to draw: the sauna’s interior walls are the wrong place for art, period. Let the wood, stone and a window onto the forest speak for the room instead.
The interesting thing is that the real wall space is still there – just one step away. A modern sauna is rarely built on its own. Nearby, you’ll find a changing room, shower, dressing area and relaxation space, and that’s where people spend most of their time. A sauna session takes fifteen minutes. The rest between sessions takes an hour. For that hour, you sit on a bench and look straight ahead at a wall that’s almost always empty.
A sauna session takes fifteen minutes. The rest between sessions takes an hour – and that’s the hour your poster should be designed for.
The sauna wave in numbers: why the relaxation room suddenly has walls to fill
The fact that the sauna has become an interior design project rather than a forgotten corner in the basement shows up in the statistics. In 2024, international search interest in saunas in Sweden increased by 47 percent compared with the previous year, while Swedes’ own search interest rose by as much as 141 percent. Surveys of sauna owners show that 82 percent describe the home sauna as an invaluable part of everyday life, not a luxury feature they use twice a year.
Culturally, the phenomenon got a major boost in spring 2025, when Sweden’s Eurovision entry by the group KAJ made sauna bathing an international talking point, and Visit Sweden built an entire visitor campaign around the phrase “just take a sauna.” The Institute for Language and Folklore has also documented how, in Swedish tradition, the sauna was far more than a room for sweating: it was used for processing flax, drying malt, slaughtering animals, and childbirth. So the room’s reinvention as a place to rest is a fairly new story in an old house.
Health research has contributed to the same trend. Finnish long-term studies from Kuopio have shown that men who used a sauna four to seven times a week had a markedly lower risk of both cardiovascular disease and dementia than those who used a sauna once a week, and in several respects the effects are similar to those of moderate physical activity. When a room shifts from a pleasure to a habitual ritual, you also start caring about how it looks.
The Institute for Language and Folklore and Research & Progress both provide a deeper background for anyone who wants to read further.
Scenes that work as your heart rate slows - and those that don’t
The relaxation room has its own rhythm. You come in warm, out of breath and with your attention waning, and sit down. Whatever you look at shouldn’t demand anything from you. That’s why scenes with a calm horizon and few elements work best: misty lakes, cracking ice, a cliff backlit by the sun, pine trunks in a row. Scenes from our nature posters do much of the work here, because they extend what’s already outside the window rather than compete with it.
Black and white is the other option, and often the most durable. In a room where everything else is pine, cedar or heat-treated aspen, a wood-colored motif can quickly become a muddle. A grayscale print adds contrast without competing for attention, and it also ages beautifully as the wood paneling darkens. Browse black-and-white posters for motifs with a clear tonal range rather than lots of detail.
The third direction is understated Nordic style, where the style itself does the work. Japandi and minimalist posters have exactly the understated feel a relaxation room calls for, with large areas of empty space for the eye to rest in. To explore this aesthetic further, you can read all about its background in our article on the background and characteristics of Japandi style.
What doesn’t work is easier to describe: sharp advertising imagery, dense typography, and anything that requires reading. Text prints with long quotes are a great choice for a hallway but a poor choice in a place where people sit with wet eyelashes. Also avoid close-up images of people - a relaxation room is a semi-naked space, and a face looking back at you can make visitors noticeably uncomfortable.
Frame, glass and hanging on a pine panel you don’t want to drill into
The relaxation area isn’t as hot as the sauna, but it’s more humid than the rest of the home. The shower is usually nearby, and the air carries steam with it every time the door to the hot room opens. After a sauna session, humidity in the anteroom can stay significantly higher than in the rest of the home for several hours, and it’s the repeated swings between damp and dry that cause wear, not a single peak. This creates three requirements for how you hang your art.
The first concerns the frame. Untreated wood absorbs moisture and can start to come loose at the corners after a couple of years. A metal frame is therefore often a better choice in this particular room, and the slim aluminum profile also creates a sharp contrast with the rough paneling. If you still want wood, it should be varnished or oiled all the way around, not just on the front.
The second consideration is the glass. Acrylic glass is lighter, will not break if the frame falls onto the tiles, and collects condensation more slowly than ordinary float glass. The downside is that acrylic gets scratched by towels and static electricity attracts dust, which is more noticeable in a room where people move around with bare skin.
The third consideration is the hanging method itself. Many prefabricated saunas have thin paneling with an air gap behind it, where an ordinary wall plug will not hold and a screw risks going straight through the vapor barrier. Heavy mirrors and large frames should be attached to a stud, not the paneling. If you cannot locate the studs, lightweight prints can easily be hung using panel hooks that catch in the grooves between the boards, without making any holes.
Tip: Never let the back of the frame sit directly against a cold exterior wall in the basement relaxation area. Place two small felt pads along the bottom edge so air can circulate behind it – then condensation forms on the wall instead of between the glass and paper.
Size and height when the viewer is sitting, lying down, and looking upward
The standard advice to center artwork at a height of 145 centimeters assumes that someone is standing. Nobody stands in the relaxation room. You sit on a bench, recline in a deck chair, or lean back against a support, which lowers eye level to somewhere between 95 and 115 centimeters. So hang it lower than you might initially want to, about ten to fifteen centimeters below your usual living room height.
Choose a few large formats rather than many small ones. The relaxation area is usually a small room with lots of lines in the paneling, and ten small frames look visually busy against an already striped background. A single 50x70 centimeter poster on the wall you face while sitting does more than six 30x40 ones. If the wall is wide, two prints of the same size work well, hung six to eight centimeters apart so they read as a single block.
If you have a small windowless anteroom or a relaxation area in the basement, there are more considerations around light and moisture in our guide to posters for the basement level. If the room adjoins a bathroom, our guide to posters for the bathroom is also a good complement, since the considerations around moisture are almost identical.
Frequently asked questions about posters in the sauna and relaxation room
Saunas have gone from basement corners to the most carefully planned room in the home, and the relaxation area is the one wall that still stands empty in most houses. Start with a single large poster on the wall you face when sitting down, choose a calm horizon or grayscale, and hang it lower than you think. At Bozetto, we print everything in Sweden and offer a 60-day return policy, so you have time to spend a couple of sauna evenings with the artwork before deciding.