60 Years of Superior Service, Quality and Professionalism

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.

Products & Services

All the products you’ll need. All the hardware you’d want—for your next home improvement.

Educated, Professional Staff

With decades of collective experience, our lumber experts are here to serve you.

Kitchen & Bath

An exceptional kitchen and bath showroom and design service all under one roof

Excelsior's knowledgeable staff, exceptional personalized service, on-time deliveries and competitive pricing have kept me coming back
Andy Esselman
A.J.E Builders
Wayne, NJ
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