{"title":"Sauna Stones \u0026 Rocks","description":"\u003cp\u003eFind sauna stones and sauna rocks for a heater-compatible setup. Compare WillowyBe rough and rounded volcanic stones, each supplied in an approximately 35 lb \/ 16 kg box. Choose by the stone type, size and loading instructions in your heater manual.\u003c\/p\u003e\n\u003cdetails\u003e\u003csummary\u003eCompare rough and rounded sauna stones\u003c\/summary\u003e\n\u003ch2\u003eChoose the right sauna rocks for your heater\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"\/products\/sauna-stone-rock-grade-a-roughly-35lb-16kg\"\u003eRough volcanic sauna stones\u003c\/a\u003e have naturally irregular shapes and a textured surface. Individual sizes and piece counts vary. Check your heater's required stone dimensions before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/products\/volcanic-sauna-stone-rock-35-lb-16-kg-rounded-lava-rocks\"\u003eRounded volcanic sauna stones\u003c\/a\u003e have a porous surface and a typical size of approximately 5–10 cm. They are intended as a top layer over suitable denser base stones, only where the heater manufacturer permits. Base stones are sold separately.\u003c\/p\u003e\n\u003ch2\u003eHow many sauna stones do you need?\u003c\/h2\u003e\n\u003cp\u003eUse your heater's specified stone capacity to plan the amount. Each box contains approximately 16 kg; include any existing base stones when checking the total load. Read our \u003ca href=\"\/blogs\/blog\/how-many-sauna-stones-does-your-heater-need\"\u003esauna stone quantity guide\u003c\/a\u003e for help interpreting the capacity.\u003c\/p\u003e\n\u003ch2\u003eQuestions before you buy\u003c\/h2\u003e\n\u003ch3\u003eAre these stones suitable for every sauna heater?\u003c\/h3\u003e\n\u003cp\u003eCompatibility depends on your heater's permitted stone material, shape, size and placement. Follow its manual for electric and wood-burning heaters. Portable infrared enclosures and steam-generator saunas do not use a stone basket.\u003c\/p\u003e\n\u003ch3\u003eWhat is included?\u003c\/h3\u003e\n\u003cp\u003eSauna stones only. Heaters, baskets, tents and other accessories are not included. Natural stones vary in shape and appearance.\u003c\/p\u003e\n\u003cp\u003eFor a closer comparison, read \u003ca href=\"\/blogs\/blog\/rounded-vs-rough-sauna-stones\"\u003erounded vs. rough sauna stones\u003c\/a\u003e. Building an outdoor setup? Browse our \u003ca href=\"\/collections\/outdoor-sauna\"\u003ewood-fired outdoor sauna kits\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/details\u003e","products":[{"product_id":"sauna-stone-rock-grade-a-roughly-35lb-16kg","title":"Grade A+ Rough Volcanic Sauna Stones – 35 lb \/ 16 kg","description":"  \u003cdiv id=\"wb-outdoor-story\"\u003e\n\u003cnav class=\"wb-wrap wb-nav\"\u003e\u003ca href=\"#wb-overview\"\u003eOverview\u003c\/a\u003e\u003ca href=\"#wb-character\"\u003eNatural character\u003c\/a\u003e\u003ca href=\"#wb-compatibility\"\u003eCompatibility\u003c\/a\u003e\u003ca href=\"#wb-specifications\"\u003eSpecifications\u003c\/a\u003e\u003ca href=\"#wb-care\"\u003eCare \u0026amp; questions\u003c\/a\u003e\u003c\/nav\u003e\u003csection class=\"wb-dark\" id=\"wb-overview\"\u003e\u003cdiv class=\"wb-wrap wb-section\"\u003e\u003cdiv class=\"wb-intro\"\u003e\n\u003cp class=\"wb-kicker\"\u003eWillowyBe natural sauna stones\u003c\/p\u003e\n\u003ch2\u003eNatural stone.\u003cbr\u003eEssential heat.\u003c\/h2\u003e\n\u003cp\u003eBring natural texture to your sauna ritual. Rough volcanic stones absorb heat from your heater and release it through the session, ready for steam when your heater permits water.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"wb-band\"\u003e\u003cpicture\u003e\u003csource media=\"(max-width:749px)\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0576\/1830\/1115\/files\/willowybe-natural-stones-hero-mobile.webp?v=1789937264\" width=\"600\" height=\"450\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0576\/1830\/1115\/files\/willowybe-natural-stones-hero.webp?v=1789937264\" alt=\"WillowyBe natural grey volcanic sauna stones with retail packaging\" width=\"1464\" height=\"600\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/picture\u003e\u003c\/div\u003e\n\u003cdiv class=\"wb-wrap\" style=\"padding-bottom:38px\"\u003e\n\u003cdiv class=\"wb-facts\"\u003e\n\u003cdiv\u003e\n\u003cstrong\u003e35 lb \/ 16 kg\u003c\/strong\u003e\u003cspan\u003eApproximate net weight per box\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eNatural volcanic stone\u003c\/strong\u003e\u003cspan\u003eRough texture. Individual character.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eFor compatible heaters\u003c\/strong\u003e\u003cspan\u003eConfirm stone type, size and capacity\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"wb-note\"\u003eSauna stones only. Heater, basket and accessories shown are not included.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"wb-wrap wb-section\" id=\"wb-character\"\u003e\u003cdiv class=\"wb-intro\"\u003e\n\u003cp class=\"wb-kicker\"\u003eNatural character\u003c\/p\u003e\n\u003ch2\u003eDifferent by nature.\u003c\/h2\u003e\n\u003cp\u003eGrey tones, visible mineral patterns and irregular profiles. Every stone is individual, and every box has its own mix of shapes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wb-grid2\"\u003e\n\u003carticle\u003e\u003cpicture\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0576\/1830\/1115\/files\/willowybe-natural-stones-texture.webp?v=1789937264\" alt=\"Close-up of the grey mineral pattern and rough texture of natural volcanic sauna stones\" width=\"650\" height=\"350\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/picture\u003e\u003ch3\u003eTexture you can see.\u003c\/h3\u003e\n\u003cp\u003eA naturally textured surface and varied mineral pattern give the stones their distinctive appearance.\u003c\/p\u003e\u003c\/article\u003e\u003carticle\u003e\u003cpicture\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0576\/1830\/1115\/files\/willowybe-natural-stones-variation.webp?v=1789937264\" alt=\"Individual rough sauna stones showing variations in shape, size and grey tones\" width=\"650\" height=\"350\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/picture\u003e\u003ch3\u003eNo two exactly alike.\u003c\/h3\u003e\n\u003cp\u003eShape, size, shade and piece count vary. Check the stone dimensions required by your heater before use.\u003c\/p\u003e\u003c\/article\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"wb-dark\"\u003e\u003cdiv class=\"wb-wrap wb-section\"\u003e\u003cdiv class=\"wb-intro\"\u003e\n\u003cp class=\"wb-kicker\"\u003eThe sauna ritual\u003c\/p\u003e\n\u003ch2\u003eWhere heat meets water.\u003c\/h2\u003e\n\u003cp\u003eHeated stones help turn water into steam. Let them heat as directed, then add small amounts of clean water only when permitted by your heater manufacturer.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"wb-band\"\u003e\u003cpicture\u003e\u003csource media=\"(max-width:749px)\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0576\/1830\/1115\/files\/willowybe-natural-stones-steam-mobile.webp?v=1789937264\" width=\"600\" height=\"450\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0576\/1830\/1115\/files\/willowybe-natural-stones-steam.webp?v=1789937264\" alt=\"A small amount of water poured onto heated sauna stones with light steam; heater and ladle not included\" width=\"1464\" height=\"600\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/picture\u003e\u003c\/div\u003e\n\u003cdiv class=\"wb-wrap\" style=\"padding-bottom:36px\"\u003e\u003cp class=\"wb-note\"\u003eFollow your heater’s water instructions. Avoid flooding the stones and keep clear of hot steam.\u003c\/p\u003e\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"wb-wrap wb-section\" id=\"wb-compatibility\"\u003e\u003cdiv class=\"wb-intro\"\u003e\n\u003cp class=\"wb-kicker\"\u003eChoose for your heater\u003c\/p\u003e\n\u003ch2\u003eYour ritual.\u003cbr\u003eIndoors and out.\u003c\/h2\u003e\n\u003cp\u003eFor compatible sauna heaters designed to hold natural stones. Your heater manual determines the correct stone type, dimensions, quantity and placement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wb-grid2\"\u003e\n\u003carticle\u003e\u003cpicture\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0576\/1830\/1115\/files\/willowybe-natural-stones-electric.webp?v=1789937264\" alt=\"Natural sauna stones loaded in an indoor electric sauna heater; heater sold separately\" width=\"650\" height=\"350\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/picture\u003e\u003ch3\u003eIndoor electric sauna.\u003c\/h3\u003e\n\u003cp\u003eLoad according to the heater instructions, leaving the required airflow around the stones. Do not force stones tightly between heating elements.\u003c\/p\u003e\u003c\/article\u003e\u003carticle\u003e\u003cpicture\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0576\/1830\/1115\/files\/willowybe-natural-stones-wood.webp?v=1789937264\" alt=\"Grey sauna stones in a basket on a wood-burning stove inside a sauna tent; stove and tent sold separately\" width=\"650\" height=\"350\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/picture\u003e\u003ch3\u003eOutdoor wood-fired sauna.\u003c\/h3\u003e\n\u003cp\u003eArrange in a compatible stove’s stone basket, following its loading and capacity requirements. The stove, basket and tent are not included.\u003c\/p\u003e\u003c\/article\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wb-grid4\" style=\"grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));gap:36px 40px;margin-top:44px\"\u003e\n\u003carticle class=\"wb-card\" style=\"border-top:1px solid #dedede;padding-top:24px\"\u003e\u003cspan class=\"wb-number\"\u003e01 \/ TYPE \u0026amp; SIZE\u003c\/span\u003e\u003ch3\u003eCheck the stone requirements.\u003c\/h3\u003e\n\u003cp\u003eMatch the stone material and dimensions to those specified by your heater manufacturer.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"wb-card\" style=\"border-top:1px solid #dedede;padding-top:24px\"\u003e\u003cspan class=\"wb-number\"\u003e02 \/ CAPACITY\u003c\/span\u003e\u003ch3\u003ePlan the quantity.\u003c\/h3\u003e\n\u003cp\u003eEach box contains approximately 16 kg. Compare this with your heater’s required stone load.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"wb-card\" style=\"border-top:1px solid #dedede;padding-top:24px\"\u003e\u003cspan class=\"wb-number\"\u003e03 \/ AIRFLOW\u003c\/span\u003e\u003ch3\u003eLeave room to circulate.\u003c\/h3\u003e\n\u003cp\u003ePlace stones securely without packing them tightly or blocking the heater’s ventilation paths.\u003c\/p\u003e\u003c\/article\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"wb-grey wb-section\" id=\"wb-specifications\"\u003e\u003cdiv class=\"wb-wrap\"\u003e\n\u003cdiv class=\"wb-intro\"\u003e\n\u003cp class=\"wb-kicker\"\u003eProduct details\u003c\/p\u003e\n\u003ch2\u003eKnow what arrives.\u003c\/h2\u003e\n\u003cp\u003eNatural sauna stones, ready to rinse and arrange in a compatible heater. No fixed piece count or uniform stone size.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdl class=\"wb-specs\"\u003e\n\u003cdiv\u003e\n\u003cdt\u003eNet content\u003c\/dt\u003e\n\u003cdd\u003eApprox. 35 lb \/ 16 kg per box\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eMaterial\u003c\/dt\u003e\n\u003cdd\u003eNatural volcanic stone\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eProfile\u003c\/dt\u003e\n\u003cdd\u003eRough, naturally irregular\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eAppearance\u003c\/dt\u003e\n\u003cdd\u003eGrey tones; natural variation\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eIntended use\u003c\/dt\u003e\n\u003cdd\u003eCompatible electric and wood-burning sauna heaters\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eIncluded\u003c\/dt\u003e\n\u003cdd\u003eSauna stones only\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003c\/dl\u003e\n\u003cp class=\"wb-note\"\u003eHeater, basket, sauna tent, ladle and other scene accessories are sold separately. Confirm your heater requirements before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"wb-wrap wb-section\"\u003e\u003cdiv class=\"wb-intro\"\u003e\n\u003cp class=\"wb-kicker\"\u003eSimple care\u003c\/p\u003e\n\u003ch2\u003eSession after session.\u003c\/h2\u003e\n\u003cp\u003eA little preparation and regular inspection help you keep the stone arrangement ready for your next sauna.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wb-grid2\"\u003e\n\u003carticle\u003e\u003cpicture\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0576\/1830\/1115\/files\/willowybe-natural-stones-rinse.webp?v=1789937264\" alt=\"Cool sauna stones being rinsed with clean water to remove loose dust\" width=\"650\" height=\"350\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/picture\u003e\u003ch3\u003eBefore the first session.\u003c\/h3\u003e\n\u003cp\u003eRinse away loose stone dust. Load the stones as your heater manual directs, with spaces for air to circulate.\u003c\/p\u003e\u003c\/article\u003e\u003carticle\u003e\u003cpicture\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0576\/1830\/1115\/files\/willowybe-natural-stones-inspect.webp?v=1789937264\" alt=\"Cooled natural sauna stones laid out for inspection and drying\" width=\"650\" height=\"350\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/picture\u003e\u003ch3\u003eReady for the next.\u003c\/h3\u003e\n\u003cp\u003eLet the heater and stones cool fully before handling. Inspect periodically, replace damaged stones and dry thoroughly before extended storage.\u003c\/p\u003e\u003c\/article\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"wb-grey wb-section\" id=\"wb-care\"\u003e\u003cdiv class=\"wb-wrap\"\u003e\n\u003cdiv class=\"wb-intro\"\u003e\n\u003cp class=\"wb-kicker\"\u003eCare \u0026amp; questions\u003c\/p\u003e\n\u003ch2\u003eThe details, answered.\u003c\/h2\u003e\n\u003cp\u003eFrom choosing the right quantity to adding water and caring for natural stone.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wb-faq\" style=\"display:block\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is included in the box?\u003c\/summary\u003e\u003cp\u003eApproximately 35 lb (16 kg) of natural volcanic sauna stones. The heater, stone basket, ladle, tent and other accessories shown in the images are not included.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWill these stones fit my sauna heater?\u003c\/summary\u003e\u003cp\u003eCheck the stone type, required dimensions, total capacity and loading method in your heater manual before ordering. These stones are for compatible electric and wood-burning sauna heaters designed to hold natural stones. Compatibility depends on your heater.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eAre the stones all the same size?\u003c\/summary\u003e\u003cp\u003eNo. These are natural rough stones, so size, shape, shade, texture and piece count vary. The box is sold by approximate weight, not by a fixed number of stones.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWill one box fill my heater?\u003c\/summary\u003e\u003cp\u003eOne box contains approximately 35 lb (16 kg). Compare that amount with the stone capacity specified by your heater manufacturer. Do not exceed its loading limit.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow should I prepare and arrange the stones?\u003c\/summary\u003e\u003cp\u003eRinse away loose surface dust before first use. Follow your heater manual and place stones individually in a stable arrangement with room for air to circulate. Do not force stones between heating elements or obstruct vents.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow should I add water?\u003c\/summary\u003e\u003cp\u003eOnly add water if your heater permits it. Let the stones heat as directed, then add small amounts according to your heater manual. Avoid flooding the stones and keep people clear of the hot steam.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat water should I use?\u003c\/summary\u003e\u003cp\u003eUse clean fresh water that meets your heater’s water-quality requirements. Do not use seawater, chlorinated pool or spa water, or dirty water containing organic debris. Follow your heater manual.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhy do sauna stones crack or crumble?\u003c\/summary\u003e\u003cp\u003eRepeated heating and cooling can gradually weaken natural stones. Let the heater and stones cool fully before inspection, and replace cracked, crumbling or significantly deteriorated stones as directed by your heater manual.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow often should I check the stones?\u003c\/summary\u003e\u003cp\u003eInspect periodically at the interval specified by your heater manufacturer, and more often with frequent use. Remove loose debris and replace damaged stones. Allow stones to dry thoroughly before extended storage.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow can I avoid burns?\u003c\/summary\u003e\u003cp\u003eHot stones, heater surfaces and steam can cause burns. Do not touch or lean over hot stones. Keep children away from the heater and allow everything to cool completely before cleaning or handling.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"wb-wrap wb-section\"\u003e\u003cdiv class=\"wb-intro\"\u003e\n\u003cp class=\"wb-kicker\"\u003eExplore your options\u003c\/p\u003e\n\u003ch2\u003eA finish for your sauna.\u003c\/h2\u003e\n\u003cp\u003eThis listing is for rough, naturally irregular stones. Looking for a rounded profile? Explore the alternative below and confirm suitability with your heater manual.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wb-grid2\"\u003e\n\u003carticle\u003e\u003ch3\u003eRough volcanic stones.\u003c\/h3\u003e\n\u003cp\u003eCurrent product · A textured surface and naturally varied shapes. Approximately 35 lb \/ 16 kg per box.\u003c\/p\u003e\u003c\/article\u003e\u003carticle\u003e\u003ch3\u003eRounded volcanic stones.\u003c\/h3\u003e\n\u003cp\u003eAn alternative rounded profile for a different visual finish.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/products\/volcanic-sauna-stone-rock-35-lb-16-kg-rounded-lava-rocks\"\u003eExplore rounded sauna stones →\u003c\/a\u003e\u003c\/p\u003e\u003c\/article\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"wb-dark\"\u003e\u003cdiv class=\"wb-wrap wb-end\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"wb-kicker\"\u003eMake time for the warmth\u003c\/p\u003e\n\u003ch2\u003eStart with natural stone.\u003c\/h2\u003e\n\u003cp\u003eApproximately 35 lb \/ 16 kg. For your compatible sauna heater.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"wb-button\" href=\"#MainContent\"\u003eChoose your stones ↑\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\u003c\/div\u003e ","brand":"Willowybe","offers":[{"title":"Default Title","offer_id":46274688549051,"sku":"stoneA","price":69.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0576\/1830\/1115\/files\/00-main-white-box.png?v=1788905782"},{"product_id":"volcanic-sauna-stone-rock-35-lb-16-kg-rounded-lava-rocks","title":"Rounded Volcanic Sauna Stones – 35 lb \/ 16 kg","description":"\u003cdiv id=\"wb-outdoor-story\"\u003e\n\u003cnav class=\"wb-wrap wb-nav\"\u003e\u003ca href=\"#wb-overview\"\u003eOverview\u003c\/a\u003e\u003ca href=\"#wb-character\"\u003eNatural character\u003c\/a\u003e\u003ca href=\"#wb-compatibility\"\u003eCompatibility\u003c\/a\u003e\u003ca href=\"#wb-specifications\"\u003eSpecifications\u003c\/a\u003e\u003ca href=\"#wb-care\"\u003eCare \u0026amp; questions\u003c\/a\u003e\u003c\/nav\u003e\n\u003csection class=\"wb-dark\" id=\"wb-overview\"\u003e\u003cdiv class=\"wb-wrap wb-section\"\u003e\u003cdiv class=\"wb-intro\"\u003e\n\u003cp class=\"wb-kicker\"\u003eWillowyBe rounded sauna stones\u003c\/p\u003e\n\u003ch2\u003eRounded form.\u003cbr\u003eNatural character.\u003c\/h2\u003e\n\u003cp\u003eSoft contours. Porous texture. Natural grey volcanic stones bring a considered finishing layer to your compatible sauna heater.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"wb-band\"\u003e\u003cpicture\u003e\u003csource media=\"(max-width:749px)\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0576\/1830\/1115\/files\/willowybe-rounded-stones-hero-mobile.webp?v=1789938131\" width=\"600\" height=\"450\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0576\/1830\/1115\/files\/willowybe-rounded-stones-hero.webp?v=1789938131\" alt=\"Rounded grey volcanic sauna stones on a charcoal background\" width=\"1464\" height=\"600\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/picture\u003e\u003c\/div\u003e\n\u003cdiv class=\"wb-wrap\" style=\"padding-bottom:38px\"\u003e\n\u003cdiv class=\"wb-facts\"\u003e\n\u003cdiv\u003e\n\u003cstrong\u003e35 lb \/ 16 kg\u003c\/strong\u003e\u003cspan\u003eApproximate net weight per box\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003e5–10 cm\u003c\/strong\u003e\u003cspan\u003eTypical stone size · Approx. 2–3.9 in\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eTop layer\u003c\/strong\u003e\u003cspan\u003eOnly where your heater permits\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"wb-note\"\u003eRounded stones only. Heater, base stones and scene accessories are not included.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\u003csection class=\"wb-wrap wb-section\" id=\"wb-character\"\u003e\u003cdiv class=\"wb-intro\"\u003e\n\u003cp class=\"wb-kicker\"\u003eA closer look\u003c\/p\u003e\n\u003ch2\u003eQuiet detail.\u003cbr\u003eDistinctly natural.\u003c\/h2\u003e\n\u003cp\u003eA rounded profile with an open, textured surface. Each stone brings its own shape and shade to the arrangement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wb-grid2\"\u003e\n\u003carticle\u003e\u003cpicture\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0576\/1830\/1115\/files\/willowybe-rounded-stones-texture.webp?v=1789938131\" alt=\"Close-up of the porous surface of rounded grey volcanic sauna stones\" width=\"650\" height=\"350\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/picture\u003e\u003ch3\u003ePorous by nature.\u003c\/h3\u003e\n\u003cp\u003eVisible pores and natural grey tones give the stones their understated character. A textured finish you can see up close.\u003c\/p\u003e\u003c\/article\u003e\u003carticle\u003e\u003cpicture\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0576\/1830\/1115\/files\/willowybe-rounded-stones-variation.webp?v=1789938131\" alt=\"Five rounded volcanic stones showing natural differences in size and shape\" width=\"650\" height=\"350\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/picture\u003e\u003ch3\u003eRounded. Never identical.\u003c\/h3\u003e\n\u003cp\u003eTypical size is approximately 2–3.9 in (5–10 cm). Individual dimensions, contours and colour vary naturally.\u003c\/p\u003e\u003c\/article\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\u003csection class=\"wb-dark\"\u003e\u003cdiv class=\"wb-wrap wb-section\"\u003e\u003cdiv class=\"wb-intro\"\u003e\n\u003cp class=\"wb-kicker\"\u003eThe sauna ritual\u003c\/p\u003e\n\u003ch2\u003eStone. Water.\u003cbr\u003eA moment to unwind.\u003c\/h2\u003e\n\u003cp\u003eLet the stones heat fully as directed by your heater manual. Then add small amounts of clean fresh water, only when your heater permits, and settle into the warmth.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"wb-band\"\u003e\u003cpicture\u003e\u003csource media=\"(max-width:749px)\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0576\/1830\/1115\/files\/willowybe-rounded-stones-steam-mobile.webp?v=1789938131\" width=\"600\" height=\"450\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0576\/1830\/1115\/files\/willowybe-rounded-stones-steam.webp?v=1789938131\" alt=\"A small stream of water poured onto heated rounded sauna stones; heater and ladle not included\" width=\"1464\" height=\"600\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/picture\u003e\u003c\/div\u003e\n\u003cdiv class=\"wb-wrap\" style=\"padding-bottom:36px\"\u003e\u003cp class=\"wb-note\"\u003eFollow your heater’s water instructions. Avoid flooding the stones and keep clear of hot steam.\u003c\/p\u003e\u003c\/div\u003e\u003c\/section\u003e\n\u003csection class=\"wb-wrap wb-section\" id=\"wb-compatibility\"\u003e\u003cdiv class=\"wb-intro\"\u003e\n\u003cp class=\"wb-kicker\"\u003eChoose for your heater\u003c\/p\u003e\n\u003ch2\u003eTwo settings.\u003cbr\u003eOne sauna ritual.\u003c\/h2\u003e\n\u003cp\u003eA finishing layer for compatible electric and wood-burning sauna heaters. Confirm the required stone type, size and loading method before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wb-grid2\"\u003e\n\u003carticle\u003e\u003cpicture\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0576\/1830\/1115\/files\/willowybe-rounded-stones-electric.webp?v=1789938131\" alt=\"Rounded stones forming a top layer on an indoor electric sauna heater; heater sold separately\" width=\"650\" height=\"350\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/picture\u003e\u003ch3\u003eIndoor electric sauna.\u003c\/h3\u003e\n\u003cp\u003ePlace over suitable base heater stones only where permitted. Maintain the required airflow and never force stones between heating elements.\u003c\/p\u003e\u003c\/article\u003e\u003carticle\u003e\u003cpicture\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0576\/1830\/1115\/files\/willowybe-rounded-stones-wood.webp?v=1789938131\" alt=\"Rounded grey sauna stones in a basket on a wood stove inside a sauna tent; stove and tent not included\" width=\"650\" height=\"350\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/picture\u003e\u003ch3\u003eOutdoor wood-fired sauna.\u003c\/h3\u003e\n\u003cp\u003eFollow the stove manual for the permitted stone arrangement, total capacity and clearances. The stove, basket and tent are not included.\u003c\/p\u003e\u003c\/article\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wb-grid4\" style=\"grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));gap:36px 40px;margin-top:44px\"\u003e\n\u003carticle class=\"wb-card\" style=\"border-top:1px solid #dedede;padding-top:24px\"\u003e\u003cspan class=\"wb-number\"\u003e01 \/ TYPE \u0026amp; SIZE\u003c\/span\u003e\u003ch3\u003eMatch your heater.\u003c\/h3\u003e\n\u003cp\u003eCheck that your heater permits rounded porous volcanic stones in the typical 5–10 cm size range.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"wb-card\" style=\"border-top:1px solid #dedede;padding-top:24px\"\u003e\u003cspan class=\"wb-number\"\u003e02 \/ PLACEMENT\u003c\/span\u003e\u003ch3\u003eFinish the top layer.\u003c\/h3\u003e\n\u003cp\u003eUse over suitable denser base heater stones only as the manufacturer allows. Base stones are not included.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"wb-card\" style=\"border-top:1px solid #dedede;padding-top:24px\"\u003e\u003cspan class=\"wb-number\"\u003e03 \/ CAPACITY\u003c\/span\u003e\u003ch3\u003eLeave room for airflow.\u003c\/h3\u003e\n\u003cp\u003eCount both base and top-layer stones toward the total permitted load. Leave the specified airflow gaps.\u003c\/p\u003e\u003c\/article\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\u003csection class=\"wb-grey wb-section\" id=\"wb-specifications\"\u003e\u003cdiv class=\"wb-wrap\"\u003e\n\u003cdiv class=\"wb-intro\"\u003e\n\u003cp class=\"wb-kicker\"\u003eProduct details\u003c\/p\u003e\n\u003ch2\u003eKnow your stones.\u003c\/h2\u003e\n\u003cp\u003eNatural variations are part of the material. Use these details alongside your heater manual to choose the right arrangement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdl class=\"wb-specs\"\u003e\n\u003cdiv\u003e\n\u003cdt\u003eNet content\u003c\/dt\u003e\n\u003cdd\u003eApprox. 35 lb \/ 16 kg per box\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eMaterial \u0026amp; finish\u003c\/dt\u003e\n\u003cdd\u003eNatural grey volcanic stone; rounded, porous surface\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eTypical stone size\u003c\/dt\u003e\n\u003cdd\u003eApprox. 2–3.9 in \/ 5–10 cm; individual stones vary\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eIntended placement\u003c\/dt\u003e\n\u003cdd\u003eTop layer over suitable denser base stones, where permitted\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eHeater compatibility\u003c\/dt\u003e\n\u003cdd\u003eElectric and wood-burning sauna heaters that permit this stone type and size\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eIncluded\u003c\/dt\u003e\n\u003cdd\u003eRounded volcanic sauna stones only\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003c\/dl\u003e\n\u003cp class=\"wb-note\"\u003eHeater, base stones, basket, tent, ladle and other accessories are not included. Compatibility and loading depend on your heater.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\u003csection class=\"wb-wrap wb-section\"\u003e\u003cdiv class=\"wb-intro\"\u003e\n\u003cp class=\"wb-kicker\"\u003eSetup \u0026amp; care\u003c\/p\u003e\n\u003ch2\u003eSet up thoughtfully.\u003cbr\u003eCare simply.\u003c\/h2\u003e\n\u003cp\u003ePrepare the stones before first use, arrange them with care and inspect regularly between sessions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wb-grid2\"\u003e\n\u003carticle\u003e\u003cpicture\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0576\/1830\/1115\/files\/willowybe-rounded-stones-layer.webp?v=1789938131\" alt=\"A rounded stone being placed over base stones in a cold sauna heater\" width=\"650\" height=\"350\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/picture\u003e\u003ch3\u003eA considered top layer.\u003c\/h3\u003e\n\u003cp\u003eWith the heater cold, position each stone securely over suitable base stones as your manual permits. Respect total capacity and leave the required gaps for air.\u003c\/p\u003e\u003c\/article\u003e\u003carticle\u003e\u003cpicture\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0576\/1830\/1115\/files\/willowybe-rounded-stones-rinse.webp?v=1789938131\" alt=\"Rounded grey volcanic sauna stones being rinsed with clean water\" width=\"650\" height=\"350\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/picture\u003e\u003ch3\u003eRinse. Dry. Inspect.\u003c\/h3\u003e\n\u003cp\u003eRinse away loose dust before first use and allow the stones to dry. Cool fully before handling, inspect regularly and replace cracked or crumbling stones.\u003c\/p\u003e\u003c\/article\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\u003csection class=\"wb-grey wb-section\" id=\"wb-care\"\u003e\u003cdiv class=\"wb-wrap\"\u003e\n\u003cdiv class=\"wb-intro\"\u003e\n\u003cp class=\"wb-kicker\"\u003eCare \u0026amp; questions\u003c\/p\u003e\n\u003ch2\u003eThe details, answered.\u003c\/h2\u003e\n\u003cp\u003eFrom choosing your top layer to loading, adding water and caring for natural stone.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wb-faq\" style=\"display:block\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is included in the box?\u003c\/summary\u003e\u003cp\u003eApproximately 35 lb (16 kg) of rounded volcanic sauna stones. Heater, base stones, stone basket, tent, ladle and other accessories shown are not included.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWill these stones fit my sauna heater?\u003c\/summary\u003e\u003cp\u003eCheck the permitted stone material, shape, dimensions and placement in your heater manual. Typical stone size is approximately 2–3.9 in (5–10 cm), with natural variation. Compatibility is specific to your heater.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I use these stones throughout the heater?\u003c\/summary\u003e\u003cp\u003eThese stones are intended as a top layer over suitable denser base heater stones, only where your heater manufacturer permits. Do not assume they can replace the entire stone load. Follow your heater’s loading instructions.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWill one box be enough?\u003c\/summary\u003e\u003cp\u003eEach box contains approximately 35 lb (16 kg). The amount you need depends on the permitted top-layer arrangement and your heater’s total stone capacity. Account for any base stones already in place and do not exceed the load limit.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWill every stone look the same?\u003c\/summary\u003e\u003cp\u003eNo. Rounded profiles, grey tones and porous textures vary naturally. Individual stones differ in size, shape and colour; the box is sold by approximate weight rather than a fixed piece count.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow should I prepare and arrange the stones?\u003c\/summary\u003e\u003cp\u003eRinse off loose dust with clean water and allow the stones to dry. With the heater cold, arrange them over suitable base stones only as permitted by the manual. Leave the specified airflow gaps and do not force stones between heating elements.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow should I add water?\u003c\/summary\u003e\u003cp\u003eOnly add water when your heater permits it. Heat the stones as directed, then add small amounts of clean fresh water according to the heater manual. Avoid flooding the stones and keep clear of hot steam.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhy do sauna stones crack?\u003c\/summary\u003e\u003cp\u003eRepeated heating and cooling gradually wears natural stones. Inspect regularly with the heater and stones fully cooled. Replace cracked, crumbling or significantly deteriorated stones according to your heater manual.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow often should I inspect the stones?\u003c\/summary\u003e\u003cp\u003eFollow the inspection schedule in your heater manual, with more frequent checks for frequent use. Remove loose debris and replace damaged stones while preserving the specified airflow and loading pattern.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow can I avoid burns during use?\u003c\/summary\u003e\u003cp\u003eDo not touch or lean over hot stones. Keep children away from the heater and avoid the path of rising steam. Let the heater and stones cool completely before handling, cleaning or rearranging.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\u003csection class=\"wb-wrap wb-section\"\u003e\u003cdiv class=\"wb-intro\"\u003e\n\u003cp class=\"wb-kicker\"\u003eExplore your options\u003c\/p\u003e\n\u003ch2\u003eChoose your finish.\u003c\/h2\u003e\n\u003cp\u003eThis listing is for rounded, porous volcanic stones. Prefer a naturally irregular profile? Explore the rough-stone option and confirm suitability with your heater manual.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wb-grid2\"\u003e\n\u003carticle\u003e\u003ch3\u003eRounded volcanic stones.\u003c\/h3\u003e\n\u003cp\u003eCurrent product · Soft contours and a porous surface. Intended as a top layer where permitted. Approximately 35 lb \/ 16 kg per box.\u003c\/p\u003e\u003c\/article\u003e\u003carticle\u003e\u003ch3\u003eRough volcanic stones.\u003c\/h3\u003e\n\u003cp\u003eA naturally irregular shape and textured surface for a different stone arrangement.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/products\/sauna-stone-rock-grade-a-roughly-35lb-16kg\"\u003eExplore rough sauna stones →\u003c\/a\u003e\u003c\/p\u003e\u003c\/article\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\u003csection class=\"wb-dark\"\u003e\u003cdiv class=\"wb-wrap wb-end\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"wb-kicker\"\u003eA natural finishing touch\u003c\/p\u003e\n\u003ch2\u003eComplete the arrangement.\u003c\/h2\u003e\n\u003cp\u003eApproximately 35 lb \/ 16 kg. A rounded top layer for your compatible heater.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca class=\"wb-button\" href=\"#MainContent\"\u003eChoose your stones ↑\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n  \u003c\/div\u003e ","brand":"Willowybe","offers":[{"title":"Default Title","offer_id":48145820451003,"sku":"stoneB","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0576\/1830\/1115\/files\/1.png?v=1789178713"}],"url":"https:\/\/willowybe.com\/collections\/sauna-stones.oembed","provider":"Willowybe","version":"1.0","type":"link"}