Hello Paul C. - I am in Georgia too. And my family is in construction too.
A group can be picked up in a number of places and will do a FULL day's work for $25 plus food and a ride.
This is for unskilleds. Subs are something different. But to clean up, unload, carry, etc it's $25 a day plus food.
Actually, the unloading it usually done by the delivery man who beings the material. Wood lumber is not really a problem. It's the sheetrock and plywood panels that are the heavy materials.