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Mammoth Office Furniture is a family run business in Herndon, Virginia that specializes in buying and selling used and new office furniture and modular cubicle workstations for small, medium and large size companies. We not only sell used office furniture but we also have our own employees and trucks to help you from the design stage all the way to the delivery and installation of your project. We have helped companies in Washington DC, Virginia, Maryland and West Virginia set-up their offices within their budget. Our showroom and warehouse is located near Dulles Airport at 503 Carlisle Drive, Suite 300, Herndon, VA 20170.