OSB stands for Oriented Strand Board. It is an engineered material that is great for load-bearing applications. An alternative to plywood, it is constructed to prevent warping and splitting. Commonly used in sheathing on walls, floors, and roof decking.
A sanded plywood panel with A-grade face, C-grade back and C-grade inner plies bonded with exterior glue. Our AC is solid core for use as underlayment.