Our 13.5" x 13.5" x 7.5" 200#/ECT-32 Standard-size corrugated boxes are designed to cater to all of your shipping and storage needs. The rigid cardboard construction protects contents and stacks securely. These 13 1/2 x 13 1/2 x 7 1/2 shipping boxes are made from 200 Pound test, kraft C-flute single wall corrugated carton. Great for shipping or storing round, narrow and large-size items.