HARTSVILLE, S.C., Sept. 22, 2015 (GLOBE NEWSWIRE) -- Sonoco (NYSE:SON), one of the largest diversified global packaging companies, has expanded its line of FlatStack® paperboard tier sheets to include FlatStack® Ultralight™, a value-priced alternative to lightweight gypsum and paperboard sheets. "The new Ultralight option offers our customers exceptional performance for a great price," said Michael Krawson, account manager for sheets. "Plus, it comes straight from our paper mills, meaning we can assure consistency in quality and security of supply." With the introduction of Sonoco's Ultralight grade, Sonoco now produces sheets in the caliper range of 10 to 50pt. Sonoco's wide range in caliper offering, coupled with in-house design and testing capabilities, enables the Company to create custom solutions to meet customers' unique manufacturing requirements (including integration with automated equipment), saving them time and money. The Ultralight option supplements Sonoco's original FlatStack® paperboard tier sheet. Made from 100 percent recycled fibers and completely recyclable, the original FlatStack paperboard sheets are a cost-effective solution that protects products on pallets during shipping, storage and retail display. Compared to typical corrugated tier sheets, FlatStack sheets offer a minimum 5 percent reduction in weight and generally garner a minimum of 15 percent cost savings across the supply chain. They also offer five times the amount of sheets per unit storage, and more than twice as many sheets shipped per truckload. To learn more about FlatStack Ultralight and Sonoco's original FlatStack tier sheets, visit www.sonoco.com/flatstack, or visit Booth S-5984 at the upcoming Pack Expo 2015 tradeshow in Las Vegas, Sept. 28-30. About Sonoco Founded in 1899, Sonoco is a global provider of a variety of consumer packaging, industrial products, protective packaging, and display and packaging services. With annualized net sales of approximately $5.0 billion, the Company has 20,800 employees working in more 330 facilities in 34 countries, serving many of the world's best known brands in some 85 nations. Sonoco is a proud member of the 2014/2015 Dow Jones Sustainability World Index. For more information on the Company, visit our website at www.sonoco.com.