I came up with the “sanders helper” because I was a painter and had to sand and finish outdoor deck. I was on my knees sanding so much so that my knees and back would get sore. I knew there had to be a better way to sand. Since all outdoor decks have warped boards my “sanders helper” can sand while one is standing up saving knees and backs. ”Sanders helper” also saves time and labor. Using a floor sander can sand the deck flat but hits the high spots not the middle of the boards unless you sand the boards way down.