Lumber for construction projects in Southampton, New York

Welcome to Riverhead Building Supply Design Showroom, your premier destination for all your building and home improvement needs. Conveniently located at 25 Powell Avenue, Southampton, New York, our showroom offers an extensive selection of top-quality products and materials tailored to meet the needs of general contractors, custom home builders, remodelers, architects, and homeowners. At Riverhead Building Supply, we pride ourselves on providing a comprehensive range of services and products, from exquisite door hardware from leading brands to a diverse selection of pavers, bluestone, and natural stone. Whether you're embarking on a new construction project or a home renovation, we have the tools, hardware, and materials necessary to ensure success. Our inventory includes everything from hand tools and power tools to cordless tools and accessories, designed to tackle any job with ease.