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What type of subfloor is best for hardwood installation?

April 26, 2017best hardwood installation subfloor type

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What type of subfloor is best for hardwood installation?

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Exterior grade plywood provides the best subfloor for modern construction because of its superior nail- or staple-holding power. In older construction, 1×6 or 1×8 boards of #1 or #2 common pine laid at a 45 degree angle to joists is also a good subfloor. While OSB, or oriented strand board, is frequently used in today’s new construction, it is acceptable only if it meets certain industry specifications and has never been exposed to moisture saturation during the building process (the wet/dry cycle can impair the nail-holding power of OSB).