Disclosed is a pallet constructed of paperboard material which is preferably water resistant. Two sheets of corrugated paperboard which are cut to define interlocking tabs are spaced in parallel relationship by a plurality of cylindrical sleeves, or rectangular corrguated tubes. The tabs are bent perpendicular...http://www.google.ca/patents/US4228744?utm_source=gb-gplus-sharePatent US4228744 - Pallet formed from two spaced, interlocking sheets of corrugated paperboard and rigid sleeves
