Abstract: A strike-off accessory device, which is configured to be mounted on a vehicle, includes a strike-off assembly for leveling the top surface of a bulk material, the strike-off assembly having a first side member, a second side member spaced apart from the first side member by a lateral distance, and at least one rear member disposed between the first side member and the second side member, the at least one rear member including a bottom edge that is configured to contact the bulk material; and a mounting assembly operatively coupled to the strike-off assembly, the mounting assembly configured to structurally support the strike-off assembly from the vehicle. In one embodiment of the invention, the lateral distance between the first member and the second member of the strike-off assembly is selectively adjustable by a user of the strike-off accessory device. In another embodiment, the vehicle is a skid-steer loader.