A pallet is formed from a thermoplastic material of the polyolefin type, from two pieces, base and deck, that can be coupled to each other with fasteners therebetween. The base and deck are provided with posts each projecting in a direction towards the other and able to be coupled to each other in order to form hollow columns. The posts projecting from the base form the outer wall of a plurality of columns, and the posts projecting from the deck are located at the interior of the columns, forming the inner wall thereof and thus constituting a hollow passage between the outer and inner walls of the columns. The hollow space is filled up with a foamed material to provide a greater impact resistance and resistance to disassembly under normal conditions of operation. The pallet can be integrally recycled without the need to separate the components thereof.