Brazilian Soapstone
Soapstone is a superior sauna rock because it absorbs heat slowly and evenly, allowing it to store an exceptional amount of thermal energy without cracking. This means softer, longer-lasting steam and far more stable temperatures. Its natural density and durability also make it highly resistant to thermal shock, giving it a much longer service life than typical sauna stones.
In our search for the highest quality rocks our search led us to Brazil to source a marvelous sauna rock, soapstone. Our Soapstone Sauna Rock delivers unmatched heat retention and smooth, consistent steam for a premium sauna experience. Its dense, high-quality composition absorbs and releases heat evenly, reducing temperature spikes and extending the life of your heater. Durable, crack-resistant, and naturally beautiful, this is the rock trusted for high-performance, long-lasting sauna use.
- Premium Sauna Rocks: Sourced from Brazilian soapstone quarries
- Optimal 3-4 Inch Size: Round, smooth and great for heat retention
- Superior Heat Distribution: Known for holding heat longer, this rock is perfect for the top layers of your sauna heater.
- Long-Lasting Durability: Built to withstand consistent high-heat use without cracking
| Weight | Dimensions | |
|---|---|---|
| 1 Box | 25 lbs | 13 × 13 × 13 in |
Questions? Send us an email, and we’ll get back to you quickly.
How often should I replace sauna stones?
Replacing your sauna stones is important when they show visible cracks, crumbling, or produce noticeably less steam. Stones naturally break down from repeated heating and cooling cycles–cracked stones reduce heat retention and steam quality. Check your stones every year and rearrange them to ensure even wear. Homecraft includes appropriate igneous sauna stones with all heaters and kits. Replace your sauna stones every 1-2 years.
Can I use regular rocks or river stones in my sauna?
No–never use regular rocks, river stones, sandstone, or limestone in your sauna heater, as they can explode when heated due to trapped moisture or structural weaknesses. Only use igneous volcanic rocks specifically sold for sauna use–these are heat-treated and designed to withstand extreme temperature cycles safely. Using improper stones is a serious safety hazard and can damage your heater.
How many sauna stones do I need?
Stone quantity depends on your heater model. Compact heaters (4-6kW) typically hold 50-80 lbs, while larger models like Homecraft’s Revive series hold 100-200 lbs for extended steam duration. More stones mean longer heat retention and softer, more sustained steam (löyly). Arrange stones loosely to allow airflow through the heater and never pack them tightly. Check your heater’s manual for the exact quantity needed.
Need more guidance?
Visit our Resources section for installation videos and troubleshooting guides.
Why Choose Homecraft Saunas?
Proudly Made in Canada
Crafted locally for North American homes, with quality you can see and trust.
Engineered for Quality
Built with premium materials and precision craftsmanship for lasting performance.
Exceptional Heat
Consistent, even warmth that delivers a true sauna experience every time.
Trusted Since 1988
Nearly 40 years of proven reliability and responsive support.



