How to Calculate Wood Moisture
What is Wood Moisture?
Wood moisture content affects strength, stability, and durability; equilibrium moisture content depends on humidity and temperature.
Step-by-Step Guide
- 1Input ambient humidity and temperature
- 2Calculate equilibrium moisture content
- 3Estimate effects on dimensional stability and strength
Worked Examples
Input
65% RH, 20°C: MC ≈ 12%
Result
Typical indoor moisture content for stability
Common Mistakes to Avoid
- ✕Assuming dry (0% MC) is possible
- ✕Not allowing equilibration time
Frequently Asked Questions
Why does moisture matter for wood?
Swelling/shrinkage causes warping, checking; moisture above fiber saturation (~28%) enables decay.
Ready to calculate? Try the free Wood Moisture Calculator
Try it yourself →