{"product_id":"stair-tread-windowsill-oak-ab-finger-jointed-lamellas-20mm-graphite-black-ral9011","title":"Stair tread Windowsill with overhang Oak A\/B, finger jointed lamellas, 20 mm, Brushed, Graphite black lacquered (RAL9011)","description":"\u003cdiv\u003e\n\u003ch3 style=\"text-align: center;\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"product-specs\"\u003e\n\u003cdiv class=\"spec-grid\"\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cstrong\u003eWood:\u003c\/strong\u003e Oak\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e A\/B\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 20 mm\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSurface\u003c\/strong\u003e: sanded, brushed\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003cspan\u003e: solid, finger jointed lamellas\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eProfile:\u003c\/strong\u003e\u003cspan\u003e customizable – see configuration options\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: graphite black lacquered (RAL9011)\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMoisture: \u003c\/strong\u003e9-11%\u003cbr\u003e\u003cmeta chars\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n.spec-grid {\n  display: grid;\n  grid-template-columns: repeat(2, 1fr);\n  gap: 4px 24px;\n}\n.spec-grid div {\n  line-height: 1.3;\n  margin: 0;\n}\n\u003c\/style\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ch3 dir=\"ltr\" style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003cbr\u003eOak A\/B – Finger Jointed Solid Oak Board\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp di\u003e\u003cspan\u003eThere’s something special about real oak — its warmth, texture, and quiet confidence. Our \u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eOak A\/B\u003c\/strong\u003e solid board\u003c\/span\u003e\u003cspan\u003e, made from \u003c\/span\u003e\u003cstrong\u003efinger-jointed lamellas\u003c\/strong\u003e\u003cspan\u003e, combines the natural strength of oak with a clean, modern look. It’s a versatile piece that fits beautifully into any project — from \u003cem\u003estair treads and shelves to windowsills or custom-made furniture\u003c\/em\u003e.\u003c\/span\u003e\u003c\/p\u003e\"ltr\"\u0026gt;\u003cspan\u003eOak has always been valued for its durability and timeless grain. The \u003c\/span\u003e\u003cstrong\u003eA\/B grading\u003c\/strong\u003e\u003cspan\u003e brings balance — the front (A) side is smooth and flawless, while the reverse (B) shows light, natural details like small knots or gentle tone shifts. The result is a surface that feels natural yet refined, perfect for interiors where you want the warmth of wood without a rustic appearance.\u003c\/span\u003e\n\u003cp di\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003efinger-jointed construction\u003c\/strong\u003e\u003cspan\u003e makes the board exceptionally strong and stable. Short oak sections are carefully joined and bonded together, forming a single, solid piece that stays straight and smooth over time. It’s a practical solution that uses oak efficiently while keeping its authentic charm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp di\u003e\u003cspan\u003eWe make every board in-house, offering a choice of thicknesses, profiles, and finishes — \u003c\/span\u003e\u003cspan\u003eoil\u003c\/span\u003e\u003cspan\u003e,\u003c\/span\u003e\u003cspan\u003e lacquer\u003c\/span\u003e\u003cspan\u003e, or \u003c\/span\u003e\u003cspan\u003ewax\u003c\/span\u003e\u003cspan\u003e. Need a special size? We’ll craft it just for you.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003e\u003cstrong\u003eWhy You’ll Love It\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp di\u003e\u003cspan\u003e\u003cstrong\u003eOak A\/B Advantages\u003c\/strong\u003e:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eSmooth, bright, and naturally balanced surface\u003c\/span\u003e\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eCalm oak grain with a touch of character\u003c\/span\u003e\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\n\u003cspan\u003eBlends easily into both modern and classic interiors\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eFinger-Jointed Advantages\u003c\/strong\u003e:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eStrong and stable construction that resists warping\u003c\/span\u003e\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eUniform appearance with a natural oak feel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\n\u003cspan\u003eReliable, sustainable use of solid wood\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\" style=\"text-align: center;\"\u003e\u003cstrong\u003eCare \u0026amp; Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eWipe with a soft, damp cloth — no strong chemicals. Re-oil or wax from time to time to keep it fresh and protected.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp di\u003e\u003cem\u003eEvery oak board has its own story. The grain and tone may vary slightly, but that’s what makes each piece unique — a true part of nature in your home.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBring the quiet elegance of Oak A\/B into your space — as a stair tread, windowsill, shelf, or furniture element. Natural, balanced, and built to last.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Lignau","offers":[{"title":"150 x 400 mm","offer_id":56104462483721,"sku":"ST-OA20-150-400-AB-FJ-GL","price":102.4,"currency_code":"PLN","in_stock":true},{"title":"150 x 500 mm","offer_id":56104462516489,"sku":"ST-OA20-150-500-AB-FJ-GL","price":138.35,"currency_code":"PLN","in_stock":true},{"title":"150 x 600 mm","offer_id":56104462549257,"sku":"ST-OA20-150-600-AB-FJ-GL","price":162.87,"currency_code":"PLN","in_stock":true},{"title":"150 x 700 mm","offer_id":56104462582025,"sku":"ST-OA20-150-700-AB-FJ-GL","price":187.4,"currency_code":"PLN","in_stock":true},{"title":"150 x 800 mm","offer_id":56104462614793,"sku":"ST-OA20-150-800-AB-FJ-GL","price":211.92,"currency_code":"PLN","in_stock":true},{"title":"150 x 900 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