Building Materials at 30 to 70 % Off! McCarren Supply is located in Carlisle, PA where we offer surplus building materials at 30-70% off the retail cost. We proudly serve Cumberland, Adams, Dauphin, Franklin, and Perry counties. Our main focus includes the following: • Doors • Windows • Hardwood Flooring • Cabinets • Vanities • And Much More You will also find an additional assortment of grade-A quality products at any given time. The merchandise is sold on a first-come first-served basis & unique products are commonplace at McCarren Supply. The inventory changes on a weekly basis with new truckloads coming in regularly. Stop in today or visit our website for additional information & current inventory.