7 Reasons Why Your Sauna Should Be Built with CLT Panels

What Is CLT?

CLT (Cross-Laminated Timber) is a type of engineered wood made by gluing layers of solid timber boards together at right angles. This crosswise layering gives CLT exceptional strength and stability. It’s ideal for constructing walls, ceilings, and roofs—perfect for those who value sustainable, high-performance materials.

How Is CLT Made?

It all starts with quality timber. The production process goes as follows:

1. Timber is cut to size.
2. Boards are layered with each new layer placed perpendicular to the last.
3. The layers are glued and pressed into a solid, structural panel.
4. Each panel is carefully inspected to meet the highest standards.

Why Choose CLT?

CLT panels offer a unique combination of performance, sustainability, and aesthetics:

Environmentally friendly:

Wood is renewable, and CLT production uses significantly less energy than concrete or steel.

Exceptionally strong and stable:

The cross-laminated structure prevents warping or twisting over time.

Thermal and sound insulation:

Keeps your sauna warm in winter, cool in summer, and quiet all year round.

Quick and easy installation:

Factory-precision panels speed up construction.

Natural beauty:

CLT fits both modern and traditional designs beautifully.

Here’s why your sauna or home should be built with CLT:

1. CLT withstands extreme conditions

Unlike steel or concrete, which can weaken under high heat, CLT maintains its strength—even in tough environments like saunas.

2. CLT buildings can last for centuries

While many think wooden structures only last a few decades, CLT buildings can stand strong for hundreds—even a thousand—years. Thanks to its layered structure, CLT doesn’t sag or lose strength over time.

3. CLT saves energy

CLT requires fewer resources to produce than concrete or steel. Its excellent insulation lowers heating costs, making homes more energy-efficient. Plus, it locks in carbon, making it one of the most eco-friendly materials available.

4. CLT is lightweight and easy to assemble

Despite its strength, CLT is relatively light, which makes transport and installation faster and more cost-effective. Less logistics, less hassle, more savings.

5. CLT helps protect the planet

Wood naturally sequesters carbon. Compared to other materials, CLT causes significantly less environmental impact.

6. CLT is suitable for saunas and humid environments

Some may wonder if wood is a good choice for wet areas—but properly treated CLT is highly durable even in humid settings.

To ensure long-term durability in saunas and bathrooms:

Use moisture barriers and proper surface treatments

(natural oils, waxes, or sauna-specific sealants)

Ensure effective ventilation so moisture doesn't linger

Combine with other suitable materials, like thermowood cladding or sauna panels, where needed

Thanks to its density and mass, CLT handles temperature fluctuations well and retains heat better than traditional wood-frame structures.

7. CLT retains heat and reduces noise

If you want a home or sauna that stays warm in winter, cool in summer, and quiet all year round—CLT is the ideal solution. It naturally provides thermal and sound insulation, enhancing comfort throughout all seasons.

8. CLT gives architects creative freedom

From compact homes to large office buildings, CLT allows for creative and bold designs. It works equally well in load-bearing structures and as an interior design element.

CLT vs Other Materials

PropertyCLT PanelConcreteSteel
Eco-friendlinessExcellentPoorModerate
StrengthVery strongUltra strongUltra strong
WeightLightHeavyMedium
Installation speedFastSlowModerate
InsulationExcellentPoorPoor

CLT is the smart choice for sauna construction

It retains heat, withstands time and moisture, and brings natural beauty into your space.
If you’re building a sauna—build it smart. Build it with CLT.

Sale info

Gen Alev (estonia, english)
Tel: (+372) 510 9701
E-mail: sales@lemmikmees.veebilahendused.ee

See a selection of CLT saunas: