Private goods and club goods have in common that they are excludable, but are different in that private goods are rival while club goods are not rival in consumption.

Private goods are both excludable and rival in consumption, meaning that one person's use of the good diminishes another's ability to use it. Club goods are excludable but non-rival in consumption, meaning that one person's use does not significantly reduce others' ability to use the good, up to a certain point or capacity.