Wood Shrinkage Calculator
Estimate dimensional shrinkage or swelling across the grain from species-average values and moisture content.
Results
Estimated dimensional change
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Estimated final dimension
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Estimated change
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Use the result as a planning estimate and verify manufacturer guidance, material data and project-specific requirements where relevant.
How it works
Published radial/tangential shrinkage is scaled over a simplified below-fiber-saturation moisture range to estimate dimensional change.
Limitations
- Actual lumber varies substantially with grain orientation, drying history and local equilibrium moisture content.