How much does osb (oriented strand board) weigh?
OSB (Oriented Strand Board) weighs 40 lb/ft³ (640 kg/m³).
Key OSB (Oriented Strand Board) Facts:
- Density: 640 kg/m³ (40 lb/ft³)
- Common uses: Roof/wall sheathing, subflooring, and structural applications
Use this calculator to determine osb (oriented strand board) weight by entering your dimensions below.
Formula: Weight = Volume × Density
Related Lumber & Wood Calculators:
Formula & Assumptions
Formula:
Weight = Volume × Density
Density Used:
OSB (Oriented Strand Board): 40 lb/ft³ (640 kg/m³)
Note:
Results are estimates based on average material densities. Actual weights may vary ±5% due to material composition and moisture content. For structural applications, verify with your supplier.

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