in assembled form in fig1 4 at 10 as is best shown by fig5 which illustrates the pallet 10 in disassembled form the pallet 10 includes two main portions a main portion 12 and a central support portion 14 each of these portions 12 and 14 will now be discussed in turn the main portion 12 includes a pallet deck 16 and two outermost support members 18 and 20 each resting beneath the pallet deck 16 at its opposing lateral sides as best shown by fig5 wherein the main position 12 is illustrated in unassembled i e blank form the outermost support members 18 and 20 are defined by a series of flaps extending from the lateral sides of the pallet deck 16 these flaps include an outer side wall flap 22 a floor flap 24 an inner side wall flap 26 and a ceiling flap 28 the flaps 22 24 26 and 28 are separated from each other and from the pallet deck 16 by fold lines 30 it is intended that the flaps 22 24 26 and 28 be folded inwardly along the fold lines 30 to define generally tubular outermost support members 18 and 20 having internal channels 32 therein thereby converting the blank main portion 12 fig5 to the assembled main portion 12 illustrated in fig1 4 however in order to make the main portion 12 self aligning that is to automatically make the outermost support members 18 and 20 parallel with their respective inner outer side walls 22 26 and floor ceiling 24 28 aligned in parallel relation so that both of the.