OSB (Oriented Strand Board) is an engineered wood panel made of wood strands, which are in cross-oriented pattern and bonded with adhesives under heat and pressure. OSB is different from MDF and Particle board. MDF is made of wood powder. Particle Board is made of wood powder and very small wood chips which are put in random pattern. These are why OSB is better than MDF and Particle Board in strength, stiffness and consistency.
OSB is manufactured from high quality coniferous from high quality coniferous wood. The veneer strands are precisely sliced from the side of clean, debarked wood logs so that the plane of the strand is parallel to the grain of the wood. These freshly cut strands are then dried, sorted and blended with a synthetic resin binder and defined portion of paraffin emulsion.