Edsal EBC42BLK Welded Steel Bookcase, Pre-Assembled, 3 Shelves, 36" W x 13" D x 40" H, Black Heavy-gauge shelves adjustable on 2" increments allowing numerous configurations for storage of books binders catalogs and other reference materials Free-standing units easily set up in rows back to back or in combination to fit available space and/or office Tough Powder Coat Finish Additional Shelves Available