Boltless Shelving Z-Beam Overall Depth 15 in Overall Height 84 in Overall Width 42 in Shelf Gauge 14 ga Shelf Adjustment Increments 1 1/2 in Steel Particleboard Steel (20) Beams (4) Posts Includes Decking Yes 900 lb Whole Unit Load Capacity 4 500 lb Starter Open Post Gauge 14 ga Number of Shelves 5 Maximum Post Load Capacity 8 000 lb with Beams Evenly Spaced at 24 in Powder Coated Medium-Duty Gray