Encyclopedia

of Home Improvements

*Question & Answer OSB*

Dear Bob

My contractor wants to use OSB Strand board in our addition for the exterior sheathing and sub floor.

Dear AF

OSB is an engineered wood product that is made with flakes or large chips of wood. The panels are formed with layers or plies glued together with their strands at 90 degree angles to one another. The cross orientation of the layers adds tremendous strength to the boards that makes OSB well suited for use as a structure board.

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