Aviditi is your premier source for all of your corrugated needs With over 1,600 corrugated box sizes available, our huge selection ensures you can choose the right size box for any application. Aviditi's corrugated box assortment has many styles to choose from including standard, flat, tall, heavy-duty, double wall, triple wall boxes and much more Check out the Aviditi store for a full selection of corrugated boxesProduct Specifications: 18 x 18 x 18 Corrugated Boxes. Inside dimensions measure 18-inches length x 18-inches width x 18-inches height. Carton capacity is approximately 3.375 cubic feet. Use this popular size cube box to package cylindrical, round or odd shaped products. Cube boxes disburse product weight evenly for easier stacking. Aviditi corrugated boxes are great for packing, shipping, moving, storage, crafting and much more These boxes are the industry standard and proudly made in the United States. Aviditi corrugated boxes are easy to assemble and fold together in seconds. Standard strength industrial corrugated boxes are manufactured from 200/ECT-32 single wall, c-flute kraft corrugated. Estimated weight capacity is 65 lbs. This is only a guide, weight must be distributed evenly. Package includes 20 boxes per bundle. Cartons are sold in bundle quantities and ship flat to save on storage, space and shipping. Corrugated boxes are reusable and recyclable.