Device for merging at least two piece goods streams arranged at different heights, with an upper feed channel for receiving packages from an upper piece goods stream, and a lower feed channel for receiving packages from a lower piece goods stream, the feed channels extending between a first vertical plane and a parallel second vertical plane, whose distance from each other corresponds to a total channel width, the upper feed channel having a first conveying surface between a first side panel running in the first vertical plane, and a second side panel, the second side panel running in the second vertical plane at least on an upstream-side final section, and a second conveying surface, which downstream joins the first conveying surface adjacent to a third side panel running in the first vertical plane and has a width, which is less than half the total channel width, wherein the second conveying surface loosely ends on a side panel running parallel to the first vertical plane at a vertical distance above the lower feed channel, the lower feed channel having a third conveying surface, which is bordered by a fourth side panel running in the second vertical plane and by a fifth side panel, wherein a width of the third conveying surface at a downstream-side end of the lower feed channel corresponds to the total channel width less the width of the second conveying surface.