How Long Does Firewood Take to Season? Hardwood vs Softwood
Plan on about 6–12 months for softwoods such as pine and spruce and 12–24 months for hardwoods such as oak and beech, until the wood reads 20% moisture or less. Climate, the time of year you cut and the species all change the timeline, so measure rather than guess.
Split it, then stack it right
Splitting matters most. University of Maryland Extension reports that split pieces dried to about 20% moisture in 6 months, and a UK test found split wood seasoned about three times faster than unsplit logs. Stack in a single row off the ground with gaps for airflow, in sun and wind, and cover only the top.
Test it with a moisture meter
Maryland Extension notes meters cost about $30. Split a piece and test the freshly exposed inside, not the outer surface, which dries first. Wood that hisses or burns poorly is usually still wet.
Timeline by wood type
| Wood | Typical time to reach 20% |
|---|---|
| Pine, spruce | 6–12 months |
| Beech, maple, birch | About 12 months or more |
| Oak | 12–24 months |
Dense, high-moisture species take longest; see the species chart. One guide suggests cutting in winter, when the tree holds less moisture, and starting a year ahead of when you need it.
FAQ
What moisture content is seasoned firewood?
20% or less, though some guides accept up to about 25%.
Can I burn green wood?
You can, but much of the heat goes to boiling off water, so it delivers less usable heat.
Does splitting help?
Yes. It is the biggest single factor in drying speed.