Give your picture books the attention they deserve with specialized shelving units from Estey!Specifically designed for your picture book collection, each shelf includes five adjustable dividers to keep materials upright.All-steel, modular shelving integrates the best materials and finest quality workmanship. Unlike conventional starter and add-ons, these units are joined frame-to-frame yet can stand independently. You can remove one unit in a continuous row of shelving without disturbing adjacent units. To ensure stability, anchor all single-faced units to walls. (Anchoring hardware not included.)Estey offers the ultimate in welded frame strength. When frames are joined, two steel channels meet and provide twice the upright support of most other shelving. Heavy-duty 14-gauge tubular steel top spreader and closed base with six-point leveling system ensure strength and stability.Estey single- and double-faced shelving units are equipped with 18-gauge steel shelves that measure 36"W and provide 35-3/8" of filing space between brackets. All shelves adjust vertically on 1" centers (except fixed base shelves).<:b >Construction:<:/b > Welded 16-gauge steel frames and 18-gauge steel shelves with an electrostatically-applied powder-coat finish that exceeds industry standards for thickness and toughness.