Details: All Steel Bookcase 7 Openings 36"W x 12"D x 84"H Black The All Steel Bookcases offer the ultimate in flexibility and value. Heavy gauge steel, double wall bookcase is built for long lasting strength and durability. Shelves adjust easily in 1-1/4" increments without removing or adjusting other shelves. Durable powder coat finish. Steel book shelves measure 36"W x 12"D. Weight capacity per shelf is 90 lbs. This unit comes with 7 dividers. Easy Assembly.