For over 100 years, Dunn Lumber has been known for providing quality building materials to all of Southeastern Wisconsin and Northern Illinois. Let our experts provide you with an accurate estimate for any size project. Whether your project is windows doors, cabinetry, countertop, roofing, siding, decking, remodeling or new construction, Dunn Lumber is your source for excellent manufacturers and our experts will guide you through the selection process.