Family of Companies

Providing everything in building materials and services including innovative, cost-effective solutions and quality products. From framing to finish, the National Lumber Family of Companies provides it all.

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Customer Testimonials

Below is a summary of what each of our specialists offer, with links to our other company websites.

National Lumber logo

National Lumber

Everything in building materials and supplies, plus in-house design and engineering services. National Lumber retail locations have knowledgeable staff to help contractors and homeowners.

Reliable Truss logo

Reliable Truss

Manufacturing prefabricated building components with in-house designers and engineers — including roof and floor trusses, floor and wall panels, cupolas, dormers, pergolas, gazebos, and more.

Kitchen Views logo

Kitchen Views

Cabinetry design solutions by talented, experienced designers, providing storage options for everywhere in a home — kitchen, bath, mudroom, dining room, bar, entertainment center, and more.

Pro Insulators logo

Pro Insulators

Commercial and residential, new building and retro-fit, we have the products and installation expertise you need. Our professional installers work efficiently and leave your jobsite clean. HIC #161268

National Millwork logo

National Millwork

We have product experts for doors, windows, mouldings, trim, and other millwork products. Our craftsmen make custom products, specializing in historic architectural replications.

National Building Products logo

National Building Products

National uses a different name and logo in Rhode Island and Connecticut, but customers still get the same great service and quality products as parent company NATIONAL LUMBER.

Oxford Lumber logo

Oxford Lumber

With a retail location in Connecticut since 2015, National uses a different name and logo in Oxford, Connecticut, but customers still get the same great service and quality products as from parent company National Lumber.

National Lumber Home Finishes logo

Home Finishes

We're proud to offer a new concept showroom at 90 Norfolk St in Mansfield, providing a focus on complete home design for building and remodeling. Our professionals are trained specialists whose knowledgeable experience and helpful advice will ensure the success of every project.


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