TENNSCO-FILE,LTR,STAK,TOP/BSE,SD. Add-A-Stack Shelving System Top+Base Unit, 36w x 13-3/16d x 10h, Sand. Modular filing system expands with your needs. Start with a Top and Base Unit, then add as many Filing Tiers as needed. Easy to install and expand; add another level simply by removing the top and stacking on another tier. Heavy-duty, reinforced steel shelves hold letter size files or folders. Sturdy steel dividers, four per shelf, are welded between frame and shelf for stability; rolled edges for safety and embossed structural ribs for strength. Creates flexible expandable shelving. Order one unit for each stack of tiers. Color(s): Sand; Width: 36 in; Depth: 13 3/16 in; Height: 1 in.