There is a fine line between a floor that is stained well and a floor that looks like an accident. A stain job will accentuate any and all sanding errors in a floor, mainly heavy grit machine marks. This is a problem that is caused by skipping steps during a sanding sequence. Wood species and density play a major role in different types of sanding sequences and it is important to know the difference between proper and improper sanding sequences. At Character Hardwood Floors, patience and integrity are transparent in all of our floors and we believe that scratchless is truly an art.