We Have All the Building Materials You Need Ross-Graden Lumber Co has been providing the Marshall, Madison, Jackson, Dekalb, and Blount County areas with quality building materials like timber, insulation, and plumbing supplies since 1920. We are a family-owned business. Whenever you start a new project, there is nothing more disappointing than going to your local building supply store and not being able to find the supplies you're looking for. When you come to us, you'll always find exactly what you need to get the job done quickly.