OSB Grade 3 Board 8' x 4' The 8' x 4' OSB Grade 3 board is a high‑performance engineered wood panel designed for demanding construction and DIY applications. Manufactured from compressed layers of oriented wood strands bonded with durable resins, OSB Grade 3 delivers excellent structural strength and reliability where it matters most. Ideal for both dry and humid conditions, Grade 3 OSB is widely specified for load‑bearing uses such as subflooring, wall sheathing, and general structural applications. Its consistent composition ensures dependable performance across the entire board, making it a trusted choice for professionals and home renovators alike. Available in 11mm and 18mm thicknesses, this product offers flexibility to suit different build requirements. Key Features of OSB Board 11mm & 18mm OSB Grade 3 suitable for load‑bearing applications. Strong, durable engineered wood construction. Moisture‑resistant, suitable for humid environments. Consistent strength across the entire board. Sheet size: 8' x 4' Thickness options: 11mm or 18mm. Excellent value alternative to traditional plywood. Please note: Timber is a natural product. Finish, colour and sizes may vary from illustration and description. While every care is taken to provide you the best material, with it being natural it can move, split, warp, twist, swell and shrink.
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