ABC Carpet & Home Co. Inc.`s eight-story building in Manhattan`s Flatiron district, with nearly eight acres of selling space, is the largest rug and carpet store in the world, attracting about a million visitors each year. The company`s array of products include not only carpets and rugs but also antiques, furniture, textiles, gifts and accessories, and bed and bath items. ABC Carpet & Home traces its beginning to 1897, when Sam Weinrib, an Austrian immigrant, loaded a cart with used carpeting and linoleum and pushed it through Manhattan`s Lower East Side.