Split red oak — typically 12-24 months to fully season
Oak is among the best firewood species in the United States — high heat output (24-28 million BTU per cord),
long burn times, and minimal smoke when properly seasoned. The main trade-off is patience: split oak needs
12-24 months to dry fully before it burns at its best.
Why oak is the gold standard
Among firewood buyers, "oak" is shorthand for quality. Two reasons: density and consistency. Oak's tight cell
structure packs more potential energy per cubic foot than nearly any other hardwood you'll encounter — only
hickory, locust, and Osage orange clearly outrank it. And because oak grows across most of the US east of the
Rockies, you can generally find it at reasonable prices.
BTU and burn time
Variety
Million BTU / cord
Burn time (relative)
Splitting
White oak
~29
Longest
Hard
Red oak
~24
Long
Medium
Live oak
~36
Extra long
Very hard
Post oak
~28
Long
Hard
For comparison: maple ~24, ash ~23, birch ~20, pine ~15. A million BTU is roughly the heat in 7 gallons of fuel oil.
What you'll pay
Across our directory, oak firewood typically prices in the $300-$550 per full cord range
delivered, with regional variation:
Midwest: $325-$450 (mix of oak and mixed hardwoods)
Texas: $350-$500 (post oak common, often mesquite-blended)
Mountain West & Pacific: often unavailable locally; expect a premium when shipped
Kiln-dried oak commands a 30-50% premium over air-seasoned. Worth it for indoor burning,
pizza ovens, or if you don't want to gamble on the supplier's "seasoned" claim.
Seasoning oak the right way
Freshly cut oak is around 50% moisture. To burn cleanly you need it under 20%. With proper stacking — split,
off the ground, top covered but sides open, ideally sun and wind — that takes 12 to 24 months
depending on climate and split size. Smaller splits dry faster.
How to tell if oak is actually seasoned: the bark loosens or falls off, the cut ends show cracks radiating
from the center, two splits clacked together make a sharp ringing sound (not a dull thud), and a moisture
meter (~$20) reads under 20% on a freshly split face.
Common questions
Is oak good firewood?
Yes — oak is among the best firewood species available in the US. It has high heat output (24-28 million BTU per cord depending on variety), burns long and steady, and produces minimal smoke when properly seasoned. The trade-off is that oak takes 12-24 months to fully season after splitting.
How much does oak firewood cost?
Oak firewood typically costs $300-$550 per full cord delivered, depending on region and seasoning. Kiln-dried oak sells at a premium of 30-50% over air-seasoned. Prices are highest in the Northeast and lowest in oak-abundant regions like the Southeast and Texas.
What's the difference between red oak and white oak firewood?
White oak burns hotter (about 29 million BTU/cord vs 24 for red oak) and longer because it's denser. Red oak is more widely available, easier to split, and seasons a bit faster. For day-to-day burning the difference is small — both are excellent.
How long does oak firewood take to season?
Split oak needs 12-24 months of air drying to reach optimal moisture (below 20%). Stacked off the ground in a windy, sunny location is fastest. Kiln-dried oak skips the wait but costs more.
Does oak firewood produce a lot of smoke?
Properly seasoned oak burns cleanly with minimal visible smoke. Green or under-seasoned oak smokes heavily because it's still boiling off moisture. The smoke from oak has a mild, pleasant scent unlike pine or fir.
Looking for oak firewood near you?
Filter any city page by species to see only suppliers whose reviews mention oak.
