How much weight can a 65cm ball hold? This is a question that many people have asked, but there is no definitive answer. The size and weight of the ball will depend on the material it is made out of. A rubber or plastic ball will be able to hold more weight than a cloth or feather one. However, as with most things, there are exceptions to this rule. Some cloth and feather balls are surprisingly sturdy and can hold quite a bit of weight. Ultimately, it depends on the specific ball in question.