128 ft³ = 1 cord · the only unit defined by law in most states
Firewood unit converter

Cord to face cord converter

A cord is 128 ft³, fixed by law. Enter what you were quoted to see how many face cords that comes to at the standard cut.

Cord · defined by lawFace cord · not legally definedRuns in your browser
Quick answer
1 cord = 3 face cords
1 face cord = 0.333 cords
ConvertLive
Reading
3
face cords
1 cord = 3 face cords · 128 ft³
What you are actually buying
Stack
4 × 8 × 48″
Face is 4 ft high by 8 ft long. Depth is whatever the logs are cut to.
Volume
128 ft³
Stacked volume, including the air between the splits.
Share of a cord
1 cd
A full cord is 128 ft³ — the legal benchmark to price against.
Legal standing
Yes
Only the cord is defined in statute in most states.
0 inTop-down view · 8 ft wide × 4 ft deep footprint48 in
48 in of 48 in depth — the shaded band is the depth you get; the rest of the 4 ft footprint is what a full cord would fill.
Signature tool

Which quote is actually cheaper?

Two sellers, two units, two species. Price per cord is not enough — oak carries nearly twice the heat of white pine. This compares dollars per MMBtu (one million British Thermal Units — a fixed unit of heat, not a brand or a volume).

Seller A
Per full cord$180.00
Per MMBtu$8.45
Seller B
Per full cord$2,100.00
Per MMBtu$98.59
Red oak carries 21.3 MMBtu per seasoned cord
Verdict · heat per dollar
1,066.7%more heat per dollar from Seller A.
Seller A
$8.45 /MMBtuSeller B
$98.59 /MMBtu

How this conversion works

A cord is a fixed 128 ft³. Dividing it into face cords means slicing that 4 ft × 4 ft × 8 ft block into 3 slabs, each 16 in deep. Because the depth is whatever the saw decided, a face cord is the one unit here whose volume you cannot know from the name alone.

This is the split most buyers meet first: a supplier prices by the cord but delivers, and advertises, in face cords. The "one third" figure everybody quotes holds only at a 16 in cut, and a great many sellers cut to 18 or 20 in because it fills a truck bed more neatly. Confirm the length before you accept the thirds.

Worked example

A cord and a half arrives: 4.5 face cords at a 16 in cut. If the seller stacked to 20 in instead, the same wood is only 3.6 face cords — fewer units, identical firewood.

Heat by species · MMBtu per cord
Black locust
26.8
Hickory
25.4
White oak
24.0
Sugar maple
21.3
Red oak
21.3
Yellow birch
20.3
Green ash
19.9
Cherry
18.4
Tamarack
17.1
White birch
16.5
White pine
13.3
Seasoned to 20 percent moisture, per full cord. Figures follow US Forest Service and state extension tables and are approximate.
Full firewood BTU chart, all 11 species →

Quick reference

Common log lengths against a 4 ft × 8 ft face. Your pair is highlighted.

Sold asStackCubic feetCordsDefined by law
Cord4 × 8 × 48″1281.000
Bush cord4 × 8 × 48″1281.000
Stove cord, 16″ cut4 × 8 × 16″42.70.333
Face cord, 16″ cut4 × 8 × 16″42.70.333
Rick, 16″ cut4 × 8 × 16″42.70.333
Face cord, 12″ cut4 × 8 × 12″320.250
Cubic feet (1)Any10.00781

Frequently asked questions

Should I buy a cord or three face cords?

+

A cord, if the price is comparable. The cord is the enforceable quantity; three face cords is three chances for the cut length to be shorter than you assumed. Buy in face cords only when the ad states the cut length in inches.

How much wall space do three face cords take?

+

Three faces 4 ft high and 8 ft long — 24 linear feet of wall in a single row, or 8 ft of wall stacked three deep at 16 in each. Leave a hand-width behind the stack so air can move through it.

How many face cords are in a cord?

+

One cord equals 3 face cords at the standard 16 in cut. A cord is a fixed 128 cubic feet; a face cord is 42.7 ft³ of that.

Is a face cord always exactly a third of a cord?

+

Only at a 16 in cut. At 12 in it is a quarter, at 24 in a half. Because the depth is whatever the saw decided, a face cord is the one unit here whose volume you cannot know from the name alone.

Which unit should the price be quoted in?

+

The cord. The cord is the only firewood measure most states will enforce. NIST Handbook 130, which nearly every state weights-and-measures office adopts, fixes it at 128 cubic feet of ranked and well-stowed wood. Ask for the quantity in cords on the receipt. That is the wording a state inspector can act on.

Related converters

All converters →