Wood Movement Calculator
Estimate across-grain wood movement from species-average shrinkage values and a moisture-content change.
Results
Estimated dimensional change
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Estimated final width
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Reference green-to-ovendry shrinkage
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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
The tool linearly scales the species’ published green-to-ovendry radial or tangential shrinkage over a simplified 0–30% moisture-content range.
Limitations
- Wood movement is nonlinear and specimen-specific; this is a planning approximation, not a substitute for measured equilibrium moisture content or product data.
- Do not use this estimate as structural certification.