A portion of the raw material becomes waste during the production
process (Gombatz, 2007). These wastes vary due to the differences
in raw materials that are involved in production, in the
actual production processes, and in the different finished products
in the primary and secondary wood-product industries. Wood
waste refers to materials that are unsuitable for the production
of wood products. They take different forms such as bark, small
chips, sawdust, wood edges, and low-quality wood rejected by
the manufacturing process (Burton et al., 2003). These wood
wastes can be classified into three types: bark, coarse, and fine
waste. Bark waste consists of the bark on the exterior part of the
log. Coarse wastes include slabs, timber edges, and veneer cores
that are suitable for chipping. Fine wastes include by-products that
are not suitable for chipping, such as sawdust and veneer clippings