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Cord (cd (wood))

A stack of firewood 4 ft × 4 ft × 8 ft: exactly 128 cubic feet, including the air between the logs.

What is a cord?

Symbol
cd (wood)
Quantity
Lumber Volume
Unit system
US customary
Definition
A stack of firewood 4 ft × 4 ft × 8 ft: exactly 128 cubic feet, including the air between the logs.
Exact
Yes, the value is exact by definition
Source
NIST Special Publication 811 (2008), Appendix B.8

Common applications

Used in the US and Canada to sell firewood and pulpwood by stacked volume.

Cord in other lumber volume units

Cord quick reference

Cord in other units
CordCubic meterBoard footCubic foot
1 cd (wood)= 3.624556363776 m³= 1536 FBM= 128 ft³
10 cd (wood)= 36.24556363776 m³= 15360 FBM= 1280 ft³
100 cd (wood)= 362.4556363776 m³= 153600 FBM= 12800 ft³
1000 cd (wood)= 3624.556363776 m³= 1536000 FBM= 128000 ft³

Where the cord fits

The next smaller lumber volume unit is the thousand board feet (MBF). 1 cd (wood) = 1.536 MBF, and 1 MBF ≈ 0.6510416667 cd (wood).

Frequently asked questions

How many cubic meters are in one cord?
One cord = 3.624556363776 m³ (cubic meters).
How many board feet are in one cord?
One cord = 1536 FBM (board feet).
How many cubic feet are in one cord?
One cord = 128 ft³ (cubic feet).