How Much Firewood for Winter? Cords by Climate and Home Size
Published: September 24, 2026 · 10 min read
A 2,000 square foot house that heats primarily with wood burns about 8 cords over a winter in a cold climate (3,000–6,000 heating degree days), 5 cords in a cool one, 2 cords in a mild one, and 12 in a frigid one. Those figures assume average insulation and seasoned hardwood. Excellent insulation cuts them nearly in half; an old, drafty house pushes them up by as much as 40 percent.
Four variables decide the answer: how cold your winter is, how big and how tight your house is, how much of your heat actually comes from the stove, and what species you burn. Everything below is organized around those four. If you would rather skip to your own number, the Firewood Requirement Calculator takes all of them at once and returns cords, face cords, stack space, and how many trees you will need.
How Much Firewood You Need, by Climate and House Size
Coldness is measured in heating degree days (HDD). The baseline is 65°F: every day whose average temperature falls below 65°F adds the difference to the running total. A town with 5,000 HDD has a genuinely cold winter; 8,000 is northern Minnesota or upstate Maine. NOAA publishes HDD normals by weather station, and state climatologist offices break the same data down by county.
The table below assumes wood as the primary heat source, average (fair) insulation, and seasoned hardwood.
| Home Size | Mild (0–1,000 HDD) | Cool (1,000–3,000) | Cold (3,000–6,000) | Frigid (6,000+) |
|---|---|---|---|---|
| 1,000 sq ft | 1 cord | 2.5 cords | 4 cords | 6 cords |
| 1,500 sq ft | 1.5 | 4 | 6 | 9 |
| 2,000 sq ft | 2 | 5 | 8 | 12 |
| 2,500 sq ft | 2.5 | 6 | 10 | 15 |
| 3,000 sq ft | 3 | 7.5 | 12 | 18 |
These are planning figures, not promises. Winter length varies inside a climate band, and a single two-week cold snap can eat a face cord. Order or cut 10 percent more than the table suggests — leftover wood only gets better next year, and running short in February means buying green wood at peak price.
Adjusting for Insulation, Heating Role, and Species
The climate column sets the baseline. Three multipliers move it from there:
- Insulation: excellent, Energy Star-level envelope × 0.5; good, modern code × 0.7; fair, an average pre-1980 house × 1.0; poor, uninsulated and drafty × 1.4.
- Role of the stove: primary heat × 1.0; supplemental, running alongside a heat pump or furnace × 0.4; emergency backup only × 0.15.
- Species: hardwood × 1.0; mixed loads × 1.2; softwood only × 1.5, because you need more cords to get the same heat.
Worked example: an 1,800 sq ft house in a cold climate (4 cords per 1,000 sq ft, so 7.2 cords), well insulated (× 0.7), wood as the main heat (× 1.0), burning hardwood (× 1.0) — about 5 cords. Change only the insulation to poor and the same house needs 10.
Stove efficiency matters as much as insulation, and it is the upgrade most people put off. An old, uncertified stove may convert only 50 percent of the wood's energy to heat. A modern EPA-certified non-catalytic stove runs about 70 percent, and a catalytic model closer to 80. Moving from the first to the third cuts your cords by roughly a third — usually a better return than any other wood-heat purchase. The Greenhouse Heater Calculator covers the same problem for a structure that is mostly glass.
Wood Species: BTU Per Cord
Species sets the ceiling on how much heat a cord can deliver. Density is the whole story: a dense wood packs more pounds of fuel into the same 128 cubic feet. BTU figures below are for air-dried wood at roughly 20 percent moisture.
| Species | Density (lb/cu ft, dry) | Million BTU per cord | Notes |
|---|---|---|---|
| Osage orange | 62 | 32.9 | Densest common firewood; throws sparks, screen the stove |
| Shagbark hickory | 63 | 27.7 | Best all-round fuel; slow, intense, long-lasting coals |
| Black locust | 48 | 27.1 | Rot-resistant; the same logs make excellent fence posts |
| White oak | 48 | 25.7 | Great coaling; needs a full year or more to season |
| Red oak | 44 | 24.6 | The standard against which other firewood is sold |
| Sugar maple | 44 | 24.0 | Clean-burning, easy to split, dependable |
| White ash | 42 | 23.6 | Splits easily and seasons fast; the best dead-standing wood |
| Red maple | 34 | 18.7 | Good shoulder-season wood for cool mornings |
| Quaking aspen | 26 | 14.7 | Fast heat, almost no coals; fine for kindling |
| Eastern white pine | 22 | 14.2 | Starts fires reliably; poor overnight fuel |
The spread is wider than most people expect. Hickory holds about twice the usable heat of white pine per cord, so the honest comparison is cost per million BTU, not cost per cord. A $400 cord of hickory beats a $250 cord of pine, and beats it again once you count the extra loading and hauling the pine requires. If you are buying, ask for the species by name and check that the load is mostly one thing; "mixed hardwood" often means whatever was left at the yard.
Seasoning: The 20 Percent Rule
Green wood is roughly half water by weight. Every pound has to be boiled off inside the stove before the wood can heat the room, and that steals 10 to 15 percent of the cord's energy. Worse, the steam cools the flue, unburned gases condense on the chimney walls, and you get creosote — the fuel for chimney fires.
Firewood is ready when a moisture meter reads below 20 percent on a freshly split face. Three ways to check without a meter: knock two pieces together and listen for a ring rather than a thud; look for cracks radiating from the end grain; or split a piece and feel the inside — it should be dry and warm, not cool and damp. Season split wood stacked off the ground, with the sides open to the wind and only the top covered. Six to twelve months handles most hardwoods; oak wants 12 to 18. The habit that solves this permanently is simple: cut and split a year ahead of when you plan to burn, so this winter's wood is always last spring's work.
Cord Math: Standard, Face, and What Fits in a Truck
Firewood is sold in units that are easy to confuse and easy to short. Know the volumes before the delivery arrives:
| Unit | Dimensions | Volume | Share of a Cord |
|---|---|---|---|
| Standard cord | 4 ft × 4 ft × 8 ft | 128 cu ft | 1.0 |
| Face cord / rick (16 in pieces) | 4 ft × 8 ft × 16 in | ~42.7 cu ft | 0.33 |
| Face cord, 12 in pieces | 4 ft × 8 ft × 12 in | 32 cu ft | 0.25 |
| Full-size pickup, 8 ft bed, level | 6.5 ft × 5.5 ft × 1.5 ft | ~54 cu ft | ~0.4 |
| Pickup with 2 ft lumber rack | 6.5 ft × 5.5 ft × 2.5 ft | ~89 cu ft | ~0.7 |
Weight is a rough cross-check: a cord of seasoned oak runs 3,500 to 4,500 pounds, and a cord of seasoned pine about half that. Many states require firewood to be sold by the cord or a fraction of a cord, so "truckload," "load," and "rick" are not legal units there, however common they are at the wood yard. Stack the wood when it arrives and measure: 4 × 4 × 8 is a cord, whatever the driver says.
What to Expect to Pay
Delivered, split, seasoned firewood commonly runs $200 to $400 per cord across most of the United States, with cut-your-own permits often under $50 and kiln-dried bundles far higher per unit of heat. Prices climb sharply near cities and on the East Coast and fall in heavily forested rural areas. Eight cords at $300 is $2,400 a season, which is why the insulation and stove-efficiency multipliers above are worth real money. If your energy plan goes beyond the stove, our off-grid solar sizing guide covers the electricity side, and the solar power reference chart is a printable one-pager.
Frequently Asked Questions
How many cords of firewood do I need for winter?
For a 2,000 square foot home heated primarily with wood, plan on about 2 cords in a mild climate, 5 in a cool climate, 8 in a cold climate, and 12 in a frigid one. Roughly halve those numbers for a well-insulated modern house and add up to 40 percent for an old, drafty one.
Is a face cord the same as a cord?
No. A standard cord is 128 cubic feet, stacked 4 feet high by 4 feet deep by 8 feet long. A face cord, also called a rick or a stove cord, is a single row 4 feet high and 8 feet long, so it holds one third of a cord when the pieces are 16 inches long, and less if they are cut shorter. Always buy in cords.
How long does firewood need to season before burning?
Six to twelve months for most hardwoods, and 12 to 18 months for oak. Split the wood, stack it off the ground with the sides open to the wind, and cover only the top. Firewood is ready when a moisture meter reads below 20 percent on a freshly split face, which is the same threshold that keeps creosote out of your chimney.
Does burning softwood cause creosote?
Not by itself. Creosote forms when wood is wet or the flue stays cool, not because of species. Softwoods like pine and spruce are less dense, so a cord delivers about 14 million BTU against 25 million for oak, and they burn faster. Dry softwood at 20 percent moisture burns cleanly in an EPA-certified stove.
How much firewood does one tree produce?
A mature hardwood 18 to 24 inches in diameter yields roughly half a cord to a full cord of split, seasoned firewood, after you account for limbs, crotch wood, and unavoidable waste. A winter's eight cords therefore represents 8 to 16 trees, which is why most homesteads cut part of their supply and buy the rest.
Ready to size your woodpile? The Firewood Requirement Calculator converts your house, climate, and wood type into cords, face cords, stack space, and trees. If you are also planning to keep the greenhouse or the workshop warm, see the Greenhouse Heater Calculator, and for the powers that carry a homestead through winter check how many solar panels it takes to run a refrigerator.