Building products for every project.

About BPI

Respect and Dignity

We believe in developing and maintaining meaningful and effective partnerships by fulfilling our commitments, preserving an atmosphere of respect and dignity, and sustaining a high level of character and integrity.

We don’t call this value engineering or performance service management, we call it our responsibility.

Our History

Built to Last

    • 1957
      Company was founded and served its customers from the Dakota Warehouse Building in Watertown, SD.
    • 1965
      Lester Schull purchased controlling interest in company.
    • 1975
      Purchased Lumbermen’s Supply Company in Sioux Falls, SD and installed its first computer system.
    • 1980
      Moved corporate office to its current location, 405 1st Ave NE, Watertown, SD.
    • 1983
      Lee Schull becomes president of company.
    • 1984
      Company expansion: New branch in Waterloo, Iowa — Building Products Inc. of Iowa.
    • 1985
      Name changed from Lumbermen’s Supply Company to Building Products Inc. of South Dakota
    • 1991
      Consolidation of the Watertown and Sioux Falls branches while opening a new division Building Products Inc — Forest Products in Rauville, SD.
    • 2000
      Numerous expansions in branches of over 180,000 SF.
    • 2003
      Opened a Prefinish facility in Sioux Falls, SD and Waterloo, IA.
    • 2009
      Acquired a location in Council Bluffs, IA — Engineered Wood/Lumber Division.
    • 2012
      Further expansion of facilities of 60,000 SF.
      Annual sales surpassed $150,000,000.
      PartnerView online ordering and document retrieval system.
    • 2013
      Acquisition of Building Products Inc. Millwork Branch, sq. ft. 97,500.
      Acquisition of Building Products Inc. of North Dakota, sq. ft. 48,844.
    • 2018
      Acquired a location in Watertown, WI — BPI of Wisconsin.

Who We Are


  • Lee Schull
    Lee Schull

    Chief Executive Officer

  • Paul Maassen
    Paul Maassen

    Chief Financial Officer

  • Cas Rangel
    Cas Rangel

    Chief Technology Officer

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