Abstract: A new grass trimmer wheeled carrier for supporting a grass trimmer with an grass cutting rotating head at the end of its elongate shaft portion. The inventive device includes a support frame having ground engaging wheels, a handle member coupled to the support frame to allow a user to maneuver the rotating head of a mowing device over the ground, and a pair of mounting members adapted for holding a mowing device are also coupled to the support frame. One of the mounting member is adapted for holding the rotating head of a mowing device in a fixed position in relation to the support frame. A trigger member is pivotally mounted on the handle member and is attached to the switch means of a grass trimmer to allow a user to engage the switch means to selectively rotate the rotating head of the mounted grass trimmer.