When selecting subflooring materials, both tongue-and-groove oriented strand board and plywood perform exceptionally well, but plywood is frequently considered superior for long-term dimensional stability and moisture tolerance. Plywood resists water damage better if exposed to rain during construction and tends to hold fasteners more securely, reducing the likelihood of squeaky floors over time. OSB is significantly cheaper and offers great stiffness across the panel, which makes it a very popular choice for builders looking to reduce material costs without sacrificing structural load capacity, provided the subfloor stays dry during framing.
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