Our chains come in standard sizes suitable for most Australian homes. We don't sell short lengths of any of our chains. So if you need a longer chain, for example for a multi-story home you could buy two chains and connect them. Most can be joined together or shortened using pliers. However, some may have to be cut and soldered to lengthen or shorten. In our experience this is quite easy to do even if you're not much of a handyman, however, we do not guarantee the ability to connect two chains.
If a chain is just a little short a copper bowl might be the answer. Otherwise a taller bowl, pot or rain barrel might solve your problem.