Celebrating 70 Years
Ensure your projects are done right every time with exceptional building supplies and services from Riverhead Building Supply. Since 1948, we have been providing our customers with premium building materials and services including flooring, roofing, railing, accurate and detailed estimates, pre-job planning services, the highest quality lumber and millwork and more.
Build Smarter. Build Better.
General contractors, custom home builders, remodelers, architects and homeowners throughout Long Island and Rhode Island count on us for a broad range of lumber, building materials, and specialty services. From frame to finish, we have the tools, hardware, paints, fine cabinetry, wide plank wood flooring, mouldings and trim that you need. Make the smart choices for your building materials to ensure that every project is a smooth success. Build Smarter. Build Better.