Builders FirstSource acquired National Lumber in January of 2021. National Lumber is a fully stocked lumberyard, providing everything in building materials from frame to finish. We offer innovative, cost-effective solutions and quality products. From doors and windows to decking and more, our display areas have the products you need for every home maintenance and renovation project. From this location, we proudly serve Berlin, Marlborough, Boylston, Northborough and all other surrounding towns! Our retail locations have knowledgeable staff to help contractors, remodelers and homeowners alike. We offer comprehensive solutions coupled with free local delivery services, which ensures that your building project runs on schedule.