Trusted by Builders, Contractors, and Homeowners Since 1939

Family-owned and serving New England for over 85 years, Koopman provides pros and DIYers with the materials and services needed for every project.

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Become A 
Koopman Pro

Business built around servicing YOU, the Pro.

  • Family‑owned supplier of building materials, tools, and hardware built for the professional trades.
  • On-time delivery of lumber and building materials to job sites across New England.
  • Credit, estimating, and pro services to help you win bids and get the job done right.
Construction worker wearing safety gear and a helmet, balancing on a wooden structure at a building site.

Rooted 
In History

Built on experience. Rooted in New England.

  • Family‑owned since 1939, founded by a local builder in Whitinsville.
  • Grown over generations without losing the hands‑on mindset that built the business.
  • A trusted resource throughout New England, backed by a strong distribution network.
Man wearing a cap and jacket stands in front of a building with a sign, looking away from the camera.

Departments

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Become a Koopman Pro

A business built around servicing YOU, the Pro. With 15 locations, including two distribution centers, we can deliver the materials you need when you need them. We also offer convenient walk-in access to hardware and building materials.

Credit

Trusted for over 85 years, we offer flexible credit, fast approvals, and support to keep your projects moving.

Engineering & EWP

Our Engineered Lumber and Estimating teams, trusted by pros and inspectors, deliver expert advice and accurate, reliable estimates you can build on.

Sales

You don’t just get a sales rep, you get a dedicated team focused on solving problems, saving time, and growing your business.

Delivery

Our GPS-tracked fleet delivers lumber and materials to your job site fast and on time so you can stay on schedule and keep work moving.

Kitchen 
& Bath

Designing a kitchen or bath doesn’t have to be stressful. Our experts guide contractors and homeowners from idea to installation.

Modern kitchen interior with island, bar stools, and stainless steel appliances.
Modern kitchen with stainless steel appliances, white cabinets, black countertops, and a wooden floor.
Modern kitchen with wooden island, bar stools, stainless steel appliances, and decorative lights.
Modern kitchen with stainless steel appliances, large island, green bar stools, and a contemporary chandelier.
Modern kitchen with large island, chandelier, bar stools, stainless steel appliances, and white cabinetry.
Modern kitchen with white cabinets, stainless steel appliances, teal lower cabinets, wooden floor, and colorful rug.
Collage of vintage photographs depicting various buildings and vehicles from the 1950s.
Collage of vintage photos showing cars, people, and buildings on a sepia-toned background reflecting historical themes.

Family Owned Since 1939. Trusted by Builders Across New England.

MA & CT state map Fairhaven, MA Fairhaven, MA Dennis, MA Dennis, MA Pembroke, MA Pembroke, MA Sharon, MA Sharon, MA Andover, MA Andover, MA Milford, MA Milford, MA Whitinsville, MA Whitinsville, MA North Grafton, MA North Grafton, MA Hudson, MA Hudson, MA Indian Orchard, MA Indian Orchard, MA Uxbridge, MA Uxbridge, MA East Hampton, CT East Hampton, CT Berlin, CT Berlin, CT Meriden, CT Meriden, CT Cheshire, CT Cheshire, CT

Proudly Serving Our Communities' Hardware Needs For Over 85 Years.

Since 1939, we’ve been a trusted part of the communities we serve. With 15 locations across New England, you’ll find quality materials, helpful pros, and service that’s ready when you are - whether you’re building, fixing, or planning ahead.