Our 9" x 9" x 30" 200#/ECT-32 Tall standard-size corrugated boxes are designed to cated to all of your shipping and storage needs. The rigid cardboard contruction protects contents and stacks securely. 9 x 9 x 30 Corrugated Tall Boxes shipping boxes are made from 200 # test, kraft C-flute single wall corrugated carton. Great for shipping or storing tall irregular-shaped items, golf equipment, carpet rolls, fishing rods, shelving and umbrellas.