Exactly what is a cord of wood? I have a pic I can e-mail to anyone, 500 pesos (less than 45 dollars) for a lot of good burning Elm, sh*te, this stuff burns better than the crap I used to buy at H.E.B. in austin, and they delivered and stacked at no extra charge! I looked at the stack and seems pretty big pile, I just wanted to know what the different sizes are when it comes to firewood sales, sort of like gas, ya know? 1 gallon, 5 gallans, etc... Is there the same different titles for different amounts of wood?