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 boxes!>>Product Specifications: 20 x 20 x 20" Heavy-Duty Boxes. Inside dimensions measure 20-inches (length x 20-inches (width x 20-inches (height. Carton capacity is approximately 4.63 cubic feet. Use this popular size cube box to package cylindrical, round or odd shaped products. Aviditi Heavy-Duty Corrugated Boxes are 40% stronger than standard shipping containers and are great for packing, shipping, moving and storage. Cube boxes disburse product weight evenly for easier stacking. Heavy-duty construction provides greater protection and stacking strength. Boxes are easy to assemble, fold together in seconds and proudly made in the United States. These boxes are manufactured from heavy-duty 275#/ECT-44 single wall, c-flute kraft corrugated. Estimated weight capacity is 95 lbs. (This is only a guide, weight must be distributed evenly. Package includes 10 heavy-duty boxes and ship flat to save on storage, space and shipping. Corrugated boxes are reusable and recyclable.