ProBuild Holdings was a privately held diversified supplier of lumber and building materials to professional builders and contractors in the United States.

[6][7] Over the next nine years, Strober acquired additional regional brands, extending its reach to the mid-Atlantic and Southeast markets.

[8] In 2008, Fidelity Capital purchased Lanoga Corporation,[9] which was, at the time, the nation's third-largest professional building materials dealer.

Fidelity made the purchase through ProBuild Holdings, Inc., a newly created entity that included the Strober Organization.

[1] On July 31, 2015, Builders FirstSource acquired ProBuild Holdings LLC, creating a more diversified company with enhanced scale and improved geographic footprint.