Robertson Bros Sawmill on old wolvi rd Gympie (just near the Victory Hotel) sell firewood for $20 a trailer load as long as you load it yourself. It's all the off cuts that are around the 30-40cm length. Some of it is a bit green but if you get it from the back of the pile, which is huge, its usually aged and has the right moisture content for those important toe warming fires whilst you indulge in a few beverages. I usually grab a trailer load once a year and just load it into those plastic feed bags as I need it for camping, keeps it dry and prevents all the mess associated with carrying wood. Just my .5cents worth
Cheers & Beers DeeTee