No, floating shelves do not carry any risk hazard. The shelves are sturdy, quick to build and with no visible support, giving an illusion that the shelf is afloat. However, if you do not have the necessary tools for attaching them to the wall, it may fall. It is essential to have the required tools, such as a hammer, screws/nails, socket sets, wood chisel, and drilling machine to keep the shelf in place.