Our 11" x 11" x 9" 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 11 x 11 x 9 shipping boxes are made from 200 Pound test, kraft C-flute single wall corrugated carton. Our Standard corrugated boxes are designed for shipping or storing round, narrow and medium-size items.