The Portable Dance Board can be safely placed on carpet, plywood, masonite, hardwood, rubber, vinyl, marley, linoleum, parquet, cement, concrete, tile, marble or any other surface. It leaves no marks or damage and is great over virtually any floor surface. There is no need to place it on a piece of non-skid rubber first. There is absolutely no slippage and it can be used indoors or outdoors.