Lumber

I would say a fit man probably could, though don't expect him to do it for very long. This assumes a recently fallen timber. I bet it would weight like 200 pounds.

As to whether or not it would float, all wood (at least all the kinds I'm familiar with) floats unless its water logged, which would happen if its been in a river for a while. I doubt anyone is going to be picking up a water logged piece of wood 12 inches in diameter.

If the wood has been rotting for a while, it probably means it won't float either. The water content will be too high.

Dry wood on the other hand is very light. You wouldn't have too much trouble moving a dessicated log 5 feet long and 12 wide around.

Haven't you seen the Commando? [grin]


Also the traditional way of transporting lumber is by water, wood definitely floats:

Obviously you’ve never heard of the caber toss