Builder Discount Mart located at 2901 Polo Road Sterling Illinois was established in 1972. Homeowners like choices when working on their homes, so therefore, the 85,000 square foot buildings offer quality goods at a reasonable price. Every day you can find 50,000 yards of carpet, 1,000 kitchen cabinets (oak and poplar), gallons of paint, moulding , hardware, doors, windows, plumbing and electrical supplies and hundreds of gizmos and gadgets in stock.