Excelsior Lumber
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Excelsior Lumber
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.

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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.
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.
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.
I've been going to Kaslander Lumber for 33 years. Bob was the first one to take a chance on me and give me credit at 19 years old. When times got tough, they stood by me and I never forgot that. Sometimes they're a little more expensive, but the service I get when I walk in there is second to none.
Reviews (8)
Joseph Giorgio
Joseph Giorgio
Oct 05, 2021
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If you are in the market for cabinetry you need to go to Excelsior Kitchens and go see Karin K. She was great from start to finish. We visited Karin as we were completing a home renovation and needed some new kitchen and bath cabinetry. Karin was great to work with from the second we walked in. We was helpful, guided us to great decisions and worked within our budget. We would highly recommend her to anyone in the market for a new kitchen or bath. A huge thanks to Karin for all of her help!
Matt H.
Matt H.
Jul 30, 2021
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I like these guys when I'm doing work in the Butler, West Milford, Bloomingdale, and Haskell towns. They're fair in terms of delivery and punctual,. The prices of lumber can't be helped. I recommend.
Allie Stone
Allie Stone
Mar 24, 2021
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We used this lumber yard when replacing our deck ourselves in 2019. We were doing it on a very slim budget and price was a major factor and Excelsior came in under everywhere else we looked. We placed the order and we were warned by others that lumber yards will just dump the delivery in your driveway so we expected a mess but they came with everything packed nicely on a skid and they used a forklift to place it exactly where we asked which is a big deal because we have a small driveway. The delivery person told us that if any pieces weren't to our liking, just to call them and they'd bring new
Tiziana Amoroso
Tiziana Amoroso
Sep 08, 2020
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Thank you Karin for all your help.. My cabinets look Fabulous !! I love how they turned out. My kitchen may be small but you never made it feel like it was a waste of time. Doing this during Covid was a challenge but you made it stress free. Pictures don't do it justice.
Thank you Tiziana
Jo Ann Salmon
Jo Ann Salmon
Jun 05, 2018
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I’ve had the pleasure of doing business with Excelsior Lumber Company for a number of years. The products and customer service are exceptional. I want to personally thank Jason Budd. He’s been my ‘go to’ guy for all my questions and he’s provided the best customer service. I’ve had so much fun ordering so many things from this store and Jason has helped me get the exact item I need. I’ve leaned a lot from him, buying doors is an exact science and confusing! After working with Jason, I was pretty confident after the 1st order, lol. Thanks Jason, thanks for all your help! A home always
Madeleine Gunderson
Madeleine Gunderson
Jan 24, 2018
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We had comparison shopped for cabinets in many showrooms and decided to go with Excelsior. Their cabinet prices were reasonable and ,Siobhan, the designer was knowledgeable and professional. She did a fabulous job designing my kitchen, was patient, easy to work with and took into account my wishlist. She even showed me different design options. When the kitchen was being installed Siobhan was available to take care of my concerns and she made every effort to quickly correct them. Several times she came out to my home to see the progress being made. I had a very good experience with Excelsior Kitchen
Tony Santini
Tony Santini
Dec 01, 2017
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I’m a bathroom and kitchen remodeling contractor. Excelsior is professional, knows their products, and Service my business better than anyone can ask. They are lucky to have Siobhan in sales and design.
I’ll use no other company for my cabinet needs.
Thanks Excelsior!
Tony Santini
Zbigniew Czarnecki
Zbigniew Czarnecki
Dec 19, 2016
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I bought cabinets and quartz countertops with Shiobhan that really spend time and help me pick the best style and choices that made my kitchen look great !!! Also best prices I got in the Area