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. Levels adjust at 1-1/2 increments and permit 4-way access. 14-gauge steel uprights measure 1-1/2 x 1-1/2. Durable gray baked enamel.Wire and Wood Deck options available sold separately.