Expect top performance with rugged steel shelving that features super-strong roll-formed steel framing with positive interlocking beam-and-post connections for quick assembly. All shelf levels also include double-rivet support for added rigidity. This unit includes 5/8" particleboard decking. Levels adjust at 1-1/2" increments and permit 4-way access. 14-gauge steel uprights measure 2-1/4" x 1-1/2". Durable baked enamel. Fast Assembly -- Reconfigures without Tools., Lot of 1