Al, O S B is oriented Strand Board. It seems to be a cross between plywood and particle board. It is made up of long strands of wood, but rather than being randomly glued together, the strands are aligned in specific patterns.
The How Stuff Works article claims that plywood and OSB are pretty similar in strength and durability, but that OSB is susceptible to swelling if exposed to moisture after it is cut. Does anyone know how to seal cut ends of OSB? -- Blue skies. Dan Rossi Carnegie Mellon University. E-Mail: d...@andrew.cmu.edu Tel: (412) 268-9081
