Firewood Seasoning Time Calculator

Burning green firewood wastes energy and causes creosote buildup. This calculator estimates how many months of seasoning your wood needs to reach a safe burn-ready moisture level (around 20% or less), based on species density, how it's split, and how it's stored.

Estimated seasoning time needed
Base species seasoning (months)
Split size adjustment factor
Storage condition factor
Climate humidity factor

About this calculator

Estimate how many months your split firewood needs to season to burn-ready moisture content based on wood species, split size, and storage conditions.

Frequently Asked Questions

What moisture content is safe to burn?

Most firewood is considered burn-ready at or below 20% moisture content, which you can verify with an inexpensive moisture meter.

Why does splitting size matter?

Smaller splits expose more surface area relative to volume, so they dry faster than large, thick rounds.

Does covering firewood help it season faster?

Covering just the top while leaving the sides open protects against rain while still allowing airflow, which speeds seasoning compared to fully wrapping the pile.