The wood intended for sawing should be barked or cleaned thoroughly, using high-pressure stream of water. The wood should be free of any dirt, sand or metal chips.
The material for sawing should be locked in a fixed position, preventing it from moving while being cut.
Hardness of wood - in order to select the right saw it is helpful to divide wood into two following groups, with respect to its hardness:
soft raw wood (aspen, poplar, willow, fir, lime-tree, birch, alder, spruce, pine-tree, larch);
hard wood (elm, oak, ash-tree, beach-tree, hornbeam, ebony).