Oriented Strand Board, commonly known as OSB, is widely considered the primary material that offers comparable structural strength to standard construction plywood while typically costing less. OSB is engineered from waterproof heat-cured adhesives and rectangular-shaped wood strands arranged in cross-oriented layers, giving it immense load-bearing capacity and shear strength suitable for subfloors, wall sheathing, and roof decking. While it lacks the smooth decorative appearance of finished hardwood plywood, OSB matches or even exceeds regular structural plywood in many structural applications while providing a notable cost savings for builders and contractors.
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