Firewood Requirement Calculator
Calculate your annual firewood requirements based on home size, insulation quality, climate zone, and heating type.
Firewood Calculator
Firewood Requirements
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Cords Needed (Standard)
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Face Cords
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Total Volume (cu ft)
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Trees Needed
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Stack Space (sq ft)
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Total BTU
How It Works
This calculator is based on USDA Forest Service guidelines and heating degree day calculations. Firewood requirements depend on home size, insulation, climate, and heating usage.
Key Terms
- Standard Cord: 128 cubic feet (4x4x8 ft stack)
- Face Cord: 1/3 of a standard cord (4x8 ft face)
- Heating Degree Days: Measure of coldness based on 65°F baseline
Cords Needed = (Home Size × Climate Factor × Insulation Factor × Heating Factor) ÷ Efficiency
Standard Cord = 4ft × 4ft × 8ft = 128 cubic feet
1 Tree ≈ 1/2 to 1 cord (depending on size)