A pallet top deck, a bottom deck, and spaced apart support blocks coupled between the top and bottom decks. Each support block includes an inner wall surrounding an interior opening, an outer wall surrounding the inner wall, and a plurality of ribs extending between the inner and outer walls. A first plurality of upper tabs extend outwards from upper surfaces of the inner wall and the plurality of ribs, with each tab comprising an angled contact surface for engaging top deck tab openings in an underside of the top deck. A second plurality of upper tabs extend outwards from the upper surfaces of the inner wall and the plurality of ribs, with each tab comprising an angled contact surface for engaging the top deck tab openings. The angled contact surfaces of the first and second plurality of upper tabs face away from each other.