I would like to suggest the ability to make an oak box from oak planks using the Carpentry craft. It could be done similarly to how the beech logs can be made into weapon shafts by using the carpenter's saw on them again at the sawhorse.
The oak boxes should just be ordinary boxes, no different than the others, except the resale value should only be one fang.
I think this would be handy to us carpenters but not imbalancing. Plus it just makes sense that cobbling together a crude box (nothing ornate) would be a simple thing for a carpenter.
