Abstract: A conveyor, preferably of the roller type, for receiving palletized loads arranged in two parallel rows. The conveyor is arranged in association with a vehicle whereby the palletized loads to be placed on the vehicle are prestaged on the conveyor and the entire load is moved into the vehicle. Palletized loads are placed on the one end of the conveyor by means of a forklift truck or the like and then the palletized loads are aligned and compacted on the conveyor by means of a movable gantry which straddles the conveyor. The gantry is provided with expansible side walls which move laterally inwardly toward the palletized loads to compact and align the loads laterally. Rear gates are swingably mounted on the gantry between open and closed positions. When the gates are closed, they act as a bulkhead to advance the palletized loads on the roller conveyor as the gantry is advanced relative to the conveyor.