Plywood vs OSB (Oriented Strand Board) Weight Comparison

    Quick Comparison

    Plywood: 35 lb/ft³ vs OSB (Oriented Strand Board): 40 lb/ft³

    OSB (Oriented Strand Board) is 14% heavier than Plywood

    Property Comparison

    Plywood

    Density35 lb/ft³ (560 kg/m³)
    Primary UseSheathing, subflooring, cabinetry, and general construction
    Calculate Plywood Weight

    OSB (Oriented Strand Board)

    Density40 lb/ft³ (640 kg/m³)
    Primary UseRoof/wall sheathing, subflooring, and structural applications
    Calculate OSB (Oriented Strand Board) Weight

    Density values based on industry-standard engineering references

    Last updated: February 2026

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