The best way to store sawdust Perth is to dry it first. Drying sawdust is also called seasoning. It is simply removing moisture from your sawdust. There are many ways you can remove moisture from your sawdust. You can place it in the sun to dry naturally or you can pass warm dry air through it to drive away the moisture. There are good reasons why you should keep your sawdust dry and why you need to buy sawdust when it is dry.Sawdust comes from wood. Wood rots when exposed to moisture and so does sawdust. If you want your sawdust to last long without rotting then you have to keep it dry. Make sure you store it in a dry room that is properly ventilated. You can build an elevated shed to store your sawdust.