Q: What is a cord?
A: A cord of firewood is 128 cubic feet or a stack measuring 4’x4’x8′.
Q: What is seasoned firewood? 
A: When firewood has a moisure content less than 20%. It takes most species at least nine months to become seasoned.
Q: What is the difference between wood species. 
A: View the comparison chart below

Firewood, one of nature’s most common methods of storing solar energy, is renewable energy source?  And that worldwide, the most common use of wood products is still for heating and cooking?