Firewood is usually sold by a measure known as a cord. A full cord may be a stack 8x4x4 feet or a stack 8x8x2 feet. What is the volume of a full cord of firewood? A short cord of wood is 8x4 x the length of the logs. What is the volume of a short cord of 2 1/2 foot logs? If you have an area that is 12 feet long and 2 feet wide in which to store your firewood, how high will the stack be if it is a full cord of wood?