Well I just did a bit of 'napkin algebra', to account for the loss of wood to the kerf. Assuming ~16" splits, you should get 6 rounds out of an 8' log. If the 5 cuts were made with 3/8 chain that removed 3/8 kerf, you'd lose nearly 2" of wood in an 8' log, to sawdust. Roughly 2% loss. Assuming your numbers are correct, you saw closer to 50% loss. That's an awful lot of variance, going from tossed, to stacked! Maybe that's why people's answers seem all over the place on this question. Depending on how well the wood is stacked, it would seem the same pile of wood can take up twice the volume from one stack to the next! Maine allows a "loose thrown cord" as a legal unit of firewood measurement. They define it as between 180 and 195 cuft, depending on split size.
