LSS Stage floor flaps are developed to connect devices to power and data lines in junction boxes below scenic areas. The stage floor flap is made of 8mm steel plate and has a 35mm wide, peripheral edge, which is flush with the stage floor. Cables are connected via cable outlets with lockable and flush closing covers. The surface of the flap is black powdered and has a coarse structure. Optionally, the surface can be covered with a slip-resistant foil. The stage floor flap has a locking against opening by punctual load and can be loaded with a wheel load of up to 5kN.