Before cold weather arrives, it helps to estimate how much firewood you need for the winter. The right amount depends on whether you enjoy occasional fireplace fires, supplement another heating system, or rely on wood as your primary heat source. Your appliance, heated space, heating habits, and winter conditions will also affect how quickly you use your supply.
How Much Firewood Do You Need for the Winter?
There is no fixed amount that works for every household, but these figures can help you begin planning:
| How firewood is used | General reference point |
| Occasional fireplace fires | Around ½ cord may be sufficient |
| Supplemental home heating | Survey average: 1.4 cords annually |
| Primary home heating | Survey average: 4.2 cords annually |
Use these figures as general references rather than fixed purchase recommendations. The supplemental and primary heating averages come from a University of Maryland report published in 2017, covering household use during the 2015–2016 heating season. Your actual needs may be considerably higher or lower.
What Affects How Much Firewood You Need?
Several factors determine how quickly your household uses firewood:
- Frequency of use: Occasional evening fires require much less wood than fires that burn for several hours each day.
- Heated area: Larger or poorly insulated spaces generally require more fuel.
- Heating appliance: An efficient wood stove or fireplace insert can provide more usable heat than a traditional open fireplace.
- Winter weather: Longer cold periods can increase your consumption from one winter to the next.
- Firewood condition: Wet wood wastes heat and may cause you to burn more.
Wood density and moisture content also affect the heat you receive from each cord. Our article on choosing your winter firewood explains these differences in more detail.
How to Estimate Your Winter Firewood Supply
If you used firewood last winter, begin with the amount your household actually burned. Adjust that figure if you expect to use your fireplace or stove more often, heat a larger area, or encounter longer periods of cold weather.
If this is your first winter using firewood, start with the reference that best matches your intended use and track your consumption during the season. Maintain a reasonable reserve, but avoid basing your supply entirely on another household’s experience. Differences in insulation, appliances, preferred temperatures, and heating habits can significantly affect usage.
What Does One Cord of Firewood Mean in Maryland?
A full cord measures 128 cubic feet of closely stacked firewood, including the natural spaces between pieces. A stack measuring 4 feet high, 4 feet wide, and 8 feet long is one common configuration.
Maryland requires unpackaged firewood to be sold by the cord or a fraction of a cord. Terms such as “face cord,” “rack,” “pile,” and “truckload” have no legal definition and cannot be used to state the quantity being sold. Sellers must also provide an invoice with essential purchase details, including the seller’s name and address, the buyer’s name, quantity, price, delivery date, and identity of the wood. If a delivery appears smaller than expected, stack and measure the wood, then contact the seller before burning it.
Plan Your Firewood Supply Before Winter
How much firewood you need for the winter depends on how you heat your home and how quickly your household uses its supply. Begin with a reliable reference, maintain a reasonable reserve, and use your actual consumption to improve future estimates.