Boxes - Regular Duty Item Code: Type: Sold By Quantity Corrugated Boxes Regular Duty Description The industry standard of cartons! All cartons are constructed from strong 200#/32 ECT (Edge Crush Test), Kraft corrugated (unless otherwise noted). All cartons ship and store flat to save space. Corrugated cartons are all 100% recyclable. Must be ordered in full bundle quantities. Special order sizes available upon request.