Although hardwood floors can withstand multiple sandings, they can also be easily destroyed by inexperience, apathy or both. All hard and soft wood floor species require different sanding
techniques based on their condition, age, board width and light exposure. Overlooking the proper technique for the different species and board width can lead to wavy, choppy, grainy, "butchered" look. Application of chosen finish is equally important, a hazy, rough, uneven, sloppy application of finish can easily ruin a great sanding.