Barge Building Cargo

For Barge Building, the instructions say that the cargo will not be known until the time of the competition, and then some examples are listed of 1 gram objects, 2.5 gram objects, and 5 gram objects. So, does that mean only 1, 2.5, or 5 gram objects are possibilities? Or, is there any other guidance about possible cargo? That’s the only part of the rules/format that is confusing to me as a coach. Thank you.

No, cargo will be all of one type and can be any mass. It will be something of reasonable mass and volume for the amount of clay used. The examples given in the rules are all examples of reasonable items.