Since firewood is the only materials we use for our fireplaces, we must need a little investment for our equipment in cutting woods to meet standard firewood dimensions. Firewood usually has a standard size so that it can be used for any size oven or for fireplaces. The usual length of a single piece of firewood is 16 inches but there is no specific dimension for its circumference. Producing firewood has become a lucrative business because countries with extreme weather conditions cannot live without the heat from firewood during winter.
 
Even in the U.S., people who are on the business of cutting up woods for firewood must invest large sum of money for their equipment. They must also get permits from the U.S. Forest Service or State agencies and in these permits specify the right dimensions for their wood products. This is to make sure that the firewood they will produce can meet standard firewood dimensions.
 
In purchasing firewood, there is a standard variety of measuring unit which is called the “cord”. When a cord is broken into smaller dimensions, the parts are called a fraction of a cord. These two terms cannot be interchanged because each has its own dimension. The firewood dimensions' standard cord is a stack of wood that is piled 4 feet wide, 8 feet long and 4 feet tall. Overall, this measurement is translated as 128 cubic feet. However, sometimes the 128 feet can sometimes turn to 70 to 90 feet if the airspace that is trapped on each piece of wood is removed and if straightness of each wood is considered. 
 
People who want to buy firewood by bulk sometimes experience difficulty in estimating firewood quantities because of the inaccurate dimension brought upon by the inaccuracy of the cord. When some people do not want to go on with the strenuous activity of measuring accurate cord, they just buy a fraction of the full cord. The measurement of this fraction is around one third of the full length of a cord. Therefore, its width is almost as wide as the length of individual wood. This means that since an individual wood is 16 inches in length, a fraction of a cord has a length of 16 inches or one third of the full cord.
 
Firewood dimensions were standardized not only to make the firewood fit to any furnace, oven or fireplace. People created firewood dimension because this is one way of measuring firewood by bulk so that firewood can be sold in bundles or cord.