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Sanded and machined to exact tolerances, SterlingOSB3 T&G delivers. You get the same high quality product – board, after board, after board. So forget about knots or voids spoiling your plans. And just get on with the job, with a board that’s engineered to deliver. FSC® Certified timber from sustainable sources This board has a hard-wearing Tongue and Groove profile on all 4 sides. This makes it perfect for platform floors – anything you build on top will be resting on the proven strength of SterlingOSB3 T&G. SterlingOSB3 T&G is BBA-approved and is widely used in house building. What’s more it is recognised by NHBC technical standards and Zurich Municipal for housing applications.