Firewood Cord Calculator

A cord is one of the few traditional volume measurements still in everyday commercial use, and it's worth understanding exactly what it represents, because firewood pricing disputes almost always trace back to confusion over measurement rather than dishonesty.

A standard (full) cord is defined as a stack measuring 4 feet high, 4 feet deep, and 8 feet long — 128 cubic feet total, based on a stack of logs cut to roughly 16-inch lengths (so that three rows of 16-inch logs fill the 4-foot depth) and split to a size that stacks reasonably tightly. This is a stacked volume measurement, not a solid-wood measurement — the gaps between irregularly shaped logs and splits are counted as part of the cord, which is standard industry practice, not a hidden shortfall, since everyone selling and buying firewood by the cord operates under the same convention.

The measurement that causes the most confusion in practice is the 'face cord' (also called a 'rick' in some regions), which is only one log-length deep rather than the full 4-foot depth of a standard cord — typically 16 to 18 inches deep, same 4-foot height and 8-foot length. Because a face cord uses the same height and length as a full cord, it's easy for a buyer unfamiliar with the terminology to assume it's the same total volume, when in fact a face cord using 16-inch logs is only about a third of a full cord's actual wood volume. Sellers don't always specify which measurement a quoted price refers to, and this ambiguity is the single most common source of buyer complaints in the firewood trade — always ask explicitly which measurement is being quoted, and ideally measure a delivered stack yourself against the agreed dimensions.

For planning purposes beyond just verifying a purchase, cord estimates are also useful for budgeting a heating season. How many cords a household needs varies enormously by climate, stove or fireplace efficiency, home insulation, and how much of total heating load comes from wood versus another source — a well-insulated home with a modern high-efficiency wood stove in a mild climate might need only 2-3 cords per season, while a poorly insulated home in a cold climate relying heavily on wood heat could need 6-8 cords or more. A local firewood supplier or agricultural extension office can usually give a climate-specific estimate worth cross-checking against your own stacked measurements as the season progresses.