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 region's premier building supplies and lumber companies, renowned for our impeccable service, quality products, and knowledgeable staff.
Withstand the Elements with Recycled Materials: Trex is a composite decking made up of recycled materials like sawdust, plastic bags, and other waste products. An environmentally-friendly brand, Trex prevents 400 million pounds of plastic and wood from entering landfills every year and has never felled a single tree!
Withstand the Elements with Recycled Materials: Trex is a composite decking made up of recycled materials like sawdust, plastic bags, and other waste products. An environmentally-friendly brand, Trex prevents 400 million pounds of plastic and wood from entering landfills every year and has never felled a single tree!
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Excelsior Lumber Company wasn't a lumber company at all when it was originally founded in 1880. It began as a wood wool manufacturer producing a fine grade of excelsior, a material used exclusively in mattresses. In 1880, Benjamin B. Demarest purchased two swathes of land on the bank of the Pequannock River in Butler, New Jersey-about one mile upstream from the Butler railroad station.
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The finest building supply dealers in the area, Excelsior Lumber Company and Kaslander Lumber Company strive for performance excellence and quality in each of our products. From engineered lumber to pressure-treated and cedar decking to the power tools needed to complete the job, we're your one-stop shop for all your home improvement projects.
About Kaslander
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Kaslander Lumber was originally founded in Newark as Morbach Lumber by John Morbach. It was here Aren Kaslander began his storied career in the building supplies industry. In the 1950s, Aren began working for Morbach Lumber. Twenty years later, the company's name was officially changed to Kaslander Lumber.
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