A transport unit for products, in particular foodstuff products, comprising: - a pallet or similar supporting structure; and - a series of supports stacked on top of one another, arranged on which are said products and which are carried by said pallet, wherein - said supports are constituted by trays that contain said products and are stacked on top of one another, said trays each comprising: a bottom, on which said products rest, and side walls, which surround said bottom and have a small height with respect to said products, so as to render visible a prevalent part of said products; and - said unit comprises at least one covering panel that covers at least one side of said stack of trays and leaves, instead, exposed at least one side for display of said products; said unit being characterized in that said trays are each provided with corner protections at least at said side for display of said products, wherein said protections of said trays are constituted by wall portions of two of said side walls, which have a greater height and are obtained at the opposite ends of the respective wall, and wherein said wall portions extend on top of and underneath the bottom of the respective tray, so as to constitute a protection in regard both to the products carried by the respective tray and to the products carried by the underlying tray, wherein each tray is constituted by a single folded sheet, wherein said sheet comprises a central portion, designed to define the bottom of the tray, and at least two portions that are folded with respect to one another, connected to each side of the central portion, for defining double lateral walls, the two portions defining a single double lateral wall being fixed via slotting in the condition where they are folded against one another; wherein two of said portions that are directly connected to the central portion and are located in positions opposite to the central portion define said corner protections, wherein in each of the two portions two widened ends are positioned at opposite corners of the sheet and have a generic quadrangular profile, each end having a predefined folding line folded in a corresponding angular configuration. - a pallet or similar supporting structure; and - a series of supports stacked on top of one another, arranged on which are said products and which are carried by said pallet, wherein - said supports are constituted by trays that contain said products and are stacked on top of one another, said trays each comprising: a bottom, on which said products rest, and side walls, which surround said bottom and have a small height with respect to said products, so as to render visible a prevalent part of said products; and - said unit comprises at least one covering panel that covers at least one side of said stack of trays and leaves, instead, exposed at least one side for display of said products; said unit being characterized in that said trays are each provided with corner protections at least at said side for display of said products, wherein said protections of said trays are constituted by wall portions of two of said side walls, which have a greater height and are obtained at the opposite ends of the respective wall, and wherein said wall portions extend on top of and underneath the bottom of the respective tray, so as to constitute a protection in regard both to the products carried by the respective tray and to the products carried by the underlying tray, wherein each tray is constituted by a single folded sheet, wherein said sheet comprises a central portion, designed to define the bottom of the tray, and at least two portions that are folded with respect to one another, connected to each side of the central portion, for defining double lateral walls, the two portions defining a single double lateral wall being fixed via slotting in the condition where they are folded against one another; wherein two of said portions that are directly connected to the central portion and are located in positions opposite to the central portion define said corner protections, wherein in each of the two portions two widened ends are positioned at opposite corners of the sheet and have a generic quadrangular profile, each end having a predefined folding line folded in a corresponding angular configuration. wherein said protections of said trays are constituted by wall portions of two of said side walls, which have a greater height and are obtained at the opposite ends of the respective wall, and wherein said wall portions extend on top of and underneath the bottom of the respective tray, so as to constitute a protection in regard both to the products carried by the respective tray and to the products carried by the underlying tray, wherein each tray is constituted by a single folded sheet, wherein said sheet comprises a central portion, designed to define the bottom of the tray, and at least two portions that are folded with respect to one another, connected to each side of the central portion, for defining double lateral walls, the two portions defining a single double lateral wall being fixed via slotting in the condition where they are folded against one another; wherein two of said portions that are directly connected to the central portion and are located in positions opposite to the central portion define said corner protections, wherein in each of the two portions two widened ends are positioned at opposite corners of the sheet and have a generic quadrangular profile, each end having a predefined folding line folded in a corresponding angular configuration.