All AIAs run 12PM - 1:30PM. To RSVP, email

CT & NY's Premier Building Material Supplier For 100 Years

Upcoming AIA Events at the Interstate Design Centers: 

NOTE: All AIAs run at  from 12PM to 1:30PM. Space is limited!


Wednesday, May 22nd - Enduring Beauty: High Performance Polymer Cladding Systems


Tuesday, May 7th - Composite Solutions for Side Hinged Entry Systems


Thursday, April 30th - Transforming Residential Design Through Unique Applications of Interior Doors

To RSVP to any upcoming AIA Events, please click here.

Our commitment to our customers is summed up by our President, Sheldon Kahan, "Customers who work with us come to know that we regard our relationships as partnerships. It's simple logic, if our customers are successful, so are we. The quality of our product mix, the extent of our services and our competitive pricing, reflects this attitude and commitment. We're not looking to be the biggest, but rather the best. We want to create a good, strong following among contractors, developers and homeowners. The way we do it is to prove that they can depend on us."


Custom Millwork

Custom Millwork is our specialty. Our state-of-the-art facility can handle any Custom Millwork project of any size.

Design Center

In celebration of over 90 years in the Architectural Millwork business, Interstate + Lakeland Lumber has opened the doors to a state-of-the-art custom showroom.


One of our goals is to continually help educate our customers, as well as our staff so that we can keep providing the best products and services possible.


Interstate's Estimating Services offers the professional builder, general contractor and architect an extensive array of products and services to help give you a competitive advantage.

Some of Our Projects


News & Events

Here you will find information about some of our most popular new product categories. We are always adding new products. For our builders and architects we host events of interest which include builder shows, training, and seminars with our leading manufacturers. We look forward to seeing you at one of the events

Latest Interstate News and Events

  • Take a virtual tour through our award-winning showroom from the comfort of your home or office.

    Our Retail Locations

    For 100 years, Fairfield & Westchester County Architects & Builders have trusted Interstate + Lakeland Lumber to supply building materials & custom millwork for the area's finest homes. Whether you're looking for custom moulding and door hardware to new and replacement windows, our design center is sure to have what you need to complete any custom millwork project. While headquartered in Greenwich, CT, our retail locations are proud to serve clients throughout Stamford, Westport, Norwalk, Fairfield, New Canaan, CT; as well as surrounding Scarsdale, Rye, Port Chester, and Shrub Oak, NY communities. For more information about our selection of building materials and products or to discuss your service needs, please feel free to contact our team today!

    Greenwich Store


    Greenwich Design Center

    Shrub Oak


    Greenwich Yard


    Our Support Locations (Not Retail)

    While not retail locations, these support facilities play an essential and integral role in Interstate + Lakeland operations. The work done here ensures that our retail locations can keep delivering their high-quality service.


    Port Chester

    Interstate Lumber

    Connect with us:


    Greenwich Store
    184 South Water Street
    Greenwich, CT 06830

    Tel: (203) 531-8050
    Fax: (203) 531-1373
    Location Manager

    247 Mill Street
    Greenwich, CT 06830

    Tel: (203) 531-8885
    Fax: (203) 531-6318
    Location Manager

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