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In 1980, after recognizing a local need for a shipping supply distributor, Liz and Dik Uihlein started Uline from the basement of their house. Their first product, after much consideration, was the H-101 carton sizer, which is still offered today. The H-101 carton sizer sold far beyond their expectations and encouraged Liz and Dik Uihlein to add more products to the Uline catalog the following year. Uline has steadily grown since 1980 and continues to be a family owned and run business. The Uline product line has expanded to include industrial and packaging materials, including over 1,600 corrugated box sizes alone. The 800+ page Uline catalog reaches many different businesses across North America, offering over 37,500 products with quick delivery. Today, with over 6,500 employees companywide, Uline has U.S. distribution centers in Chicago, Minneapolis, Allentown, Los Angeles, Atlanta, Dallas, and Seattle, Canada locations in Toronto and Edmonton and Mexico locations in Mexicali and Monterrey.