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How Much Firewood Do You Need?

Calculate cords of firewood needed for the heating season based on home size, climate zone, and heating method.

📅 Updated April 2026 Formula verified 📖 4 min read 🆓 Free · No sign-up

How Much Firewood You Need

A cord is 128 cubic feet (4×4×8 feet stacked). For a 2,000 sq ft home in a cold climate using firewood as primary heat, expect to burn 4-6 cords per season. Supplemental heating (firewood + furnace): 2-3 cords. Occasional use: 0.5-1 cord. Hardwoods (oak, maple, hickory) burn hotter and longer — one cord of oak produces as much heat as 1.5 cords of pine.

Hardwood vs Softwood

Hardwoods (oak, maple, hickory, ash): 24+ million BTU per cord, long burn time, excellent coals, less creosote. Best for heating. Softwoods (pine, spruce, fir): 15-18 million BTU per cord, burns fast, more creosote buildup, easier to split. Better for kindling and shoulder-season fires. Best value: Buy seasoned (dried 6-12 months) hardwood. Green wood has 30-50% moisture and produces half the heat while creating dangerous creosote buildup in your chimney.

⚡ CalcWolf Insight

Firewood calculator searches peak September-November as people prepare for winter. In cold-climate states, this is a critical seasonal purchase decision. Firewood suppliers and stove retailers advertise in this space at $3-8 CPC.

Frequently asked questions
How much does a cord of firewood cost?
National average: $250-350 per cord delivered, depending on region, wood type, and seasoning. Seasoned hardwood costs more than green or mixed wood. Urban/suburban areas pay more than rural. Buying in spring/summer (off-season) saves 15-25%. A "face cord" or "rick" is 1/3 of a full cord — make sure you know which measurement a seller is using.
How long does a cord of firewood last?
For primary heating in a cold climate: one cord lasts approximately 6-8 weeks. For supplemental heating: 2-3 months. For occasional weekend fires: a cord can last an entire season. Actual burn rate depends on stove efficiency, home insulation, outdoor temperature, and wood species.
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Kevin Glover
Founder, CalcWolf · GLVTS · Blickr
All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →
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