Plastic pallet, comprising - a deck for storing objects to be transported, - feet which are formed so as to protrude from a deck underside, and - runners which are in each case designed to connect at least two feet to one another on the undersides thereof, - at least one stiffening structure, comprising lower side rails arranged in the runners and upper side rails arranged spaced apart therefrom, which are arranged above the lower side rails running parallel thereto, - wherein the at least one stiffening structure comprises rungs, each having a predominantly closed surface, which surfaces connect the lower side rails in the feet to the upper side pieces, - characterised in that - the rungs are formed integrally on the side rails (6, 7) or are connected thereto in each case via contact surfaces by substance-to-substance bonding, by force-based engagement or by positive engagement, i the at least one stiffening structure has rungs exclusively formed integrally on the side rails (6, 7) and is formed as an extruded aluminium profile (10, 13) or as a rolled and bent metal profile, in each case with openings introduced between the rungs, or ii the lower side rail and the upper side rail are designed as tubes with a rectangular cross-section and at least the inner rungs are designed as plate-shaped connecting elements, in which contact surfaces are integrally formed as standing seams on two opposing sides, or iii at least the lower side rail, the upper side rail and the two outer rungs are formed integrally from a bent tube with a rectangular cross-section, - so that the bending stiffness the of pallet and the shear strength of the pallet are increased in a plane parallel to the deck upper side. - a deck for storing objects to be transported, - feet which are formed so as to protrude from a deck underside, and - runners which are in each case designed to connect at least two feet to one another on the undersides thereof, - at least one stiffening structure, comprising lower side rails arranged in the runners and upper side rails arranged spaced apart therefrom, which are arranged above the lower side rails running parallel thereto, - wherein the at least one stiffening structure comprises rungs, each having a predominantly closed surface, which surfaces connect the lower side rails in the feet to the upper side pieces, - characterised in that - the rungs are formed integrally on the side rails (6, 7) or are connected thereto in each case via contact surfaces by substance-to-substance bonding, by force-based engagement or by positive engagement, i the at least one stiffening structure has rungs exclusively formed integrally on the side rails (6, 7) and is formed as an extruded aluminium profile (10, 13) or as a rolled and bent metal profile, in each case with openings introduced between the rungs, or ii the lower side rail and the upper side rail are designed as tubes with a rectangular cross-section and at least the inner rungs are designed as plate-shaped connecting elements, in which contact surfaces are integrally formed as standing seams on two opposing sides, or iii at least the lower side rail, the upper side rail and the two outer rungs are formed integrally from a bent tube with a rectangular cross-section, i the at least one stiffening structure has rungs exclusively formed integrally on the side rails (6, 7) and is formed as an extruded aluminium profile (10, 13) or as a rolled and bent metal profile, in each case with openings introduced between the rungs, or ii the lower side rail and the upper side rail are designed as tubes with a rectangular cross-section and at least the inner rungs are designed as plate-shaped connecting elements, in which contact surfaces are integrally formed as standing seams on two opposing sides, or iii at least the lower side rail, the upper side rail and the two outer rungs are formed integrally from a bent tube with a rectangular cross-section, - so that the bending stiffness the of pallet and the shear strength of the pallet are increased in a plane parallel to the deck upper side.