Three adjustable shelves provide flexibility and two fixed shelves add stability. Durable shelves tested to hold up to 50 pounds each. Quality construction for superior resistance to scratches and stains. Accepts coordinating Half Height Door Kit to conceal lower shelves. 5 tier bookshelf is Contemporary and traditional finish, to complement any office. Tested to meet ANSI and BIFMA quality standards for safety and performance. Backed by the Bush Business Furniture 10 Year Manufacturer's Warranty. American made with U.S. and imported parts.