Cable tray cover for the walkable cable tray system BKRS. Base cover strip-galvanized with a material thickness of 2 mm with additional riveted aluminum checker plate as a duet pattern with a material thickness of 4 mm, non-slip and non-slip. Turn-lock fastening with a turn-lock spacing of 500 mm. When using covers outdoors, additional measures must be taken to protect against wind influences. Cover clamps or turn-locks alone are not sufficient securing elements against wind loads.