Features: Its Economical storage for any kind of hand loaded material. Rigid, boltless connection between beams and posts. Common tee post between units assures additional rigidity. Easy access to contents from all sides. Braces are not necessary. Shelves adjust on 1-1/2" centers. Particleboard decking sold separately. Optional heavy single rivet beams available. Starter and add-on units combine to form economical rows of shelving. Top and bottom shelves are double rivet and assemble easily without tool.