We are a family-owned and operated building supplies company, steeped in history and experience spanning nearly 60 years. We are conveniently based in two locations: Excelsior Lumber Company is in Butler, NJ and Kaslander Lumber Company is in Newark, NJ.
We are proudly recognized as one of the ' premier building supplies and lumber companies, renowned for our impeccable service, quality products, and knowledgeable staff.