{"product_id":"cumaru-prime-kd-glatt-terrassendiele-21x90mm-fixlangen","title":"Cumarú Prime KD smooth decking board 21 × 90 mm – fixed lengths","description":"\u003cp\u003eThe \u003cstrong\u003eCumarú Prime KD smooth deck board 21 × 90 mm\u003c\/strong\u003e is a particularly high-quality and long-lasting decking material for outdoor areas. With its \u003cstrong\u003enatural red\/brown tone\u003c\/strong\u003e, \u003cstrong\u003ehigh hardness\u003c\/strong\u003e, and \u003cstrong\u003edurability class 1\u003c\/strong\u003e, it stands out due to its elegant appearance, high stability, and excellent weather resistance.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eProduct description\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eCumarú Prime KD deck board\u003c\/strong\u003e is one of the premium hardwoods for durable deck constructions. The wood originates from \u003cstrong\u003enorthern South America\u003c\/strong\u003e and gives decks, balconies, and outdoor areas an elegant, natural appearance with its warm \u003cstrong\u003ered\/brown tone\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eParticularly noteworthy is its \u003cstrong\u003every high natural durability\u003c\/strong\u003e: according to \u003cstrong\u003eDIN EN 350-2\u003c\/strong\u003e, Cumarú corresponds to \u003cstrong\u003edurability class 1\u003c\/strong\u003e, making it exceptionally well-suited for long-term outdoor use – even without special protective measures.\u003c\/p\u003e\n\u003cp\u003eWith a \u003cstrong\u003ebulk density of approx. 1000–1200 kg\/m³\u003c\/strong\u003e (at 12–15 % wood moisture) and a \u003cstrong\u003eBrinell hardness of 45–58 N\/mm²\u003c\/strong\u003e, Cumarú is significantly harder than many domestic wood species, such as white oak. This makes the board resilient and durable.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eKD (kiln-dried)\u003c\/strong\u003e specification describes technical drying to \u003cstrong\u003e16–18 % wood moisture\u003c\/strong\u003e under controlled conditions. Since Cumarú shows increased swelling and shrinkage behavior (during slow moisture absorption\/release), a \u003cstrong\u003egap of 4 mm\u003c\/strong\u003e (at 16–18 % wood moisture) must be planned for during installation.\u003c\/p\u003e\n\u003cp\u003eDue to the high hardness of the wood, \u003cstrong\u003ecarbide-tipped tools\u003c\/strong\u003e should be used for processing. \u003cstrong\u003ePre-drilling is mandatory\u003c\/strong\u003e for fastening to avoid screw breakage and cracking.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e✅ Advantages at a glance\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eCumarú Prime KD deck board\u003c\/strong\u003e – very durable and stable\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eNatural red\/brown tone\u003c\/strong\u003e for an elegant deck look\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eDurability class 1\u003c\/strong\u003e according to DIN EN 350-2\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eVery high Brinell hardness (45–58 N\/mm²)\u003c\/strong\u003e – especially resistant\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eKiln-dried (KD)\u003c\/strong\u003e to 16–18 % wood moisture\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eSlow moisture absorption\/release\u003c\/strong\u003e for controlled behavior\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eIdeal for high-quality outdoor areas\u003c\/strong\u003e and long-term use\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eProcessing \u0026amp; installation notes\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eGap spacing:\u003c\/strong\u003e approx. \u003cstrong\u003e4 mm\u003c\/strong\u003e at 16–18 % wood moisture\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eTools:\u003c\/strong\u003e Use of \u003cstrong\u003ecarbide tools\u003c\/strong\u003e recommended\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eFastening:\u003c\/strong\u003e \u003cstrong\u003ePre-drilling required\u003c\/strong\u003e to avoid cracks and screw breakage\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eAccount for swelling and shrinkage behavior during planning\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eTechnical data\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eWood type:\u003c\/strong\u003e Cumarú Prime\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eFinish:\u003c\/strong\u003e KD smooth\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e \u003cstrong\u003e21 × 90 mm\u003c\/strong\u003e\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eLengths:\u003c\/strong\u003e \u003cstrong\u003eFixed lengths\u003c\/strong\u003e\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eColor:\u003c\/strong\u003e natural red\/brown tone\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eWood moisture (KD):\u003c\/strong\u003e 16–18 %\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eDurability:\u003c\/strong\u003e Class 1 (DIN EN 350-2)\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eBulk density:\u003c\/strong\u003e approx. 1000–1200 kg\/m³ (at 12–15 % wood moisture)\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eBrinell hardness:\u003c\/strong\u003e 45–58 N\/mm²\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eConclusion\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eCumarú Prime KD smooth deck board 21 × 90 mm\u003c\/strong\u003e is a great choice for anyone looking for a \u003cstrong\u003eresilient, long-lasting, and visually elegant deck covering\u003c\/strong\u003e. Its exceptional hardness, natural durability, and warm coloring make it a premium wood for demanding outdoor projects.\u003c\/p\u003e","brand":"Gunreben-Holz","offers":[{"title":"0.92 m","offer_id":45763090710681,"sku":"F01112001000-0.92","price":9.46,"currency_code":"EUR","in_stock":false},{"title":"1.53 m","offer_id":45763094970521,"sku":"F01112001000-1.53","price":14.61,"currency_code":"EUR","in_stock":false},{"title":"6 feet","offer_id":45763090743449,"sku":"F01112001000-1.83","price":13.54,"currency_code":"EUR","in_stock":true},{"title":"2.13 m","offer_id":45763090776217,"sku":"F01112001000-2.13","price":20.34,"currency_code":"EUR","in_stock":false},{"title":"2.45 m","offer_id":45763090808985,"sku":"F01112001000-2.45","price":23.4,"currency_code":"EUR","in_stock":false},{"title":"2.75 m","offer_id":45763090841753,"sku":"F01112001000-2.75","price":26.26,"currency_code":"EUR","in_stock":false},{"title":"3.05 m","offer_id":45763090874521,"sku":"F01112001000-3.05","price":29.13,"currency_code":"EUR","in_stock":false},{"title":"3.35 m","offer_id":45763090907289,"sku":"F01112001000-3.35","price":31.99,"currency_code":"EUR","in_stock":false},{"title":"3.66 m","offer_id":45763090940057,"sku":"F01112001000-3.66","price":34.95,"currency_code":"EUR","in_stock":false},{"title":"3.97 m","offer_id":45763090972825,"sku":"F01112001000-3.97","price":37.91,"currency_code":"EUR","in_stock":false},{"title":"4.27 m","offer_id":45763091071129,"sku":"F01112001000-4.27","price":40.78,"currency_code":"EUR","in_stock":false},{"title":"4.57 m","offer_id":45763091005593,"sku":"F01112001000-4.57","price":43.64,"currency_code":"EUR","in_stock":false},{"title":"4.88 m","offer_id":45763091038361,"sku":"F01112001000-4.88","price":46.6,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2213\/0329\/files\/F01115101000-1.jpg?v=1738406403","url":"https:\/\/gonreben.com\/en\/products\/cumaru-prime-kd-glatt-terrassendiele-21x90mm-fixlangen","provider":"Gunreben","version":"1.0","type":"link"}