Typically, pine milling processes generate a lot of waste, including bark, woodchips, shavings, sawdust, stringers and trim blocks. Pine sawdust is arguably the most useful and versatile of all the by-products. For instance, you can use it as mulch, as a fuel source, in soak spills and filling holes and defects in timber products. That said, choosing high-quality pine sawdust is not as simple as most people think. You must consider specific factors to purchase the right product.