How long does firewood last? Burning it, and storing it
Two different questions hide in this one: how many fires will my wood give me, and will it still be good when I get to the bottom of the stack? Here are the real numbers for both.
Every fall someone asks me, half-joking, whether the wood they are buying in September will "still be good" in February. And every winter someone else runs out in January because nobody gave them honest burn-rate numbers in the fall. Both problems have simple answers.
Short answer
Burning: an evening fire uses 4 to 6 splits over 3 to 4 hours, so a 4x8 stack is about 80 fires and a full cord about 240. Storage: dry wood kept off the ground and covered on top lasts for years; kiln-dried wood stores especially well because it starts bug and mold free. Buy for the season without fear; the wood outlasts the winter.
How long firewood lasts in the fire
The unit that matters is the fire, not the cord. A typical fireplace evening burns 4 to 6 of our 16-inch splits across 3 to 4 hours. From there the math is straightforward:
| Size | About how many fires | Lasts a... |
|---|---|---|
| 2x4 ft stack | ~20 | Month or two of weekend fires |
| 4x4 ft stack | ~40 | Season of occasional burning |
| 4x8 ft stack (1/3 cord) | ~80 | Season of 1-2 fires a week |
| 4x16 ft stack (2/3 cord) | ~160 | Season of most-nights burning |
| Full cord | ~240 | Heavy season, or a stove's winter share |
Two things bend these numbers. Species: dense oak burns meaningfully longer per split than lighter woods, so an oak stack gives more fire-hours than the same size mixed stack. Appliance: a wood stove run as real heat consumes wood far faster than an evening fireplace; stove households should think in cords, and our wood stove guide covers that math.
How long firewood lasts in storage
Here is the reassuring part: dry firewood does not expire. Wood stored correctly keeps its burning quality for years. What ruins stored wood is not time but water and ground contact: a stack sitting on soil wicks moisture and starts to rot from the bottom, and a tarp wrapped tight around all sides traps humidity and grows mold.
- Off the ground: a rack, pallets, or even a couple of rails. Our 8 ft steel rack exists for exactly this.
- Covered on top, open on the sides: shed rain and snow, let air move.
- Indoors is fine for kiln-dried: because kiln drying kills bugs and mold, the wood can live in a garage, basement, or mudroom safely. That is not true of roadside seasoned wood, which can bring passengers in with it.
Kiln-dried wood will pick up a little surface moisture in very humid air, which is why we say covered or indoors. It never drifts back to wet-wood moisture on its own, and a split stored right in September lights just as fast in February. The full storage playbook is in our storage guide.
Bottom line
Count fires, not months: 4 to 6 splits per evening, roughly 80 fires in a 4x8, 240 in a cord. Store it off the ground and covered, and time is on your side. If you know your burning habits, our sizing guide turns them into an exact order, and every stack we deliver is kiln-dried, hand-selected, and personally guaranteed by me.
Frequently asked questions
How long does a cord of firewood last?
For a fireplace burning a few evenings a week, a full cord typically lasts a whole season. For a wood stove used as real heat, plan on two to three cords a winter. A cord is roughly 240 fires worth of our 16-inch splits.
How many fires does a stack of firewood give?
Our working baseline: a 2x4 ft stack is about 20 fires, a 4x4 about 40, a 4x8 about 80, and a 4x16 about 160. A typical evening fire burns 4 to 6 splits over 3 to 4 hours.
Does firewood go bad in storage?
Dry firewood stored off the ground and covered on top keeps for years. Kiln-dried wood has the advantage of starting bug and mold free, so it stores cleanly indoors; the enemies are ground contact and trapped moisture, not time.
Does kiln-dried firewood reabsorb moisture?
Slightly and slowly at the surface in humid air, which is why we recommend a rack with a cover or indoor storage. It never returns to green-wood moisture on its own; a properly stored kiln-dried split lights just as well months later.
How much firewood should I buy for the season?
Weekend burners: a 4x8 stack (about 80 fires) usually covers the season. Most-nights burners and stove households: a 4x16 or a full cord in early fall, with a midwinter top-up if the winter runs long.
How long does one fire burn per load of wood?
A fireplace load of 4 to 6 dry splits burns 3 to 4 hours with occasional feeding. Dense oak burns noticeably longer per split than lighter woods, which is why stove owners prefer it.
Clark started splitting and selling firewood on his family farm in Upperville, Virginia at age 11. Today Clark's Firewood delivers premium kiln-dried hardwood to homes across Virginia, Washington DC, Maryland, and North Carolina, and Clark personally guarantees every order.
