Sonotube concrete forms have been re-designed to stand strong even in wetweather using the company's high-strength RainGuard paper technology. More than just paper, these rugged forms are the most cost-effective way to create round columns for buildings, entranceways, structural columns, light posts, and other commercial and residential structures. They are available in diameters from 6 to 60 inches and lengths up to 60 feet. Sonoco, 800-377-2692,