CAC RV - 5/17/2009 10:55 AM My advice would be to use tiles rather then planks and float the floor rather then adhering the floor to the coach. The tiles will resist both X and Y axis twisting of the coach better then planks. Floating the flooring will also perform better then adhering it to the coach in that the tiles will not be subject to the twisting of the coach as much and not adhering the cork to the coach will be easier for someone to change out the flooring at a future date.