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Kaslander Lumber New Jersey's premier building supplies, lumberyard, and kitchen and bath company is here to provide your home with the ultimate upgrade. Add value to your property with a stunning deck and outdoor living space. From Trex and Fiberon to Wolf Decking and Railing Systems and more, we carry an extensive selection of quality products for all your decking and railing system needs.

Choose from our impressive selection of natural and engineered lumber for all your home constructions projects. We offer nothing but the best quality lumber from Boise Cascade and Eastern Engineered Wood Products.
Services
We are a family-owned and operated building supplies company dedicated to providing New Jersey residents with state-of-the-art construction and home improvement products and services. From an exceptional kitchen and bath showroom to a fully-stocked hardware store and lumberyard, you'll find everything you need for your next construction project.
The Excelsior Lumber and Kaslander Lumber teams are always ready to lend you a helping hand to finish your projects on time and within budget. With more than fifty years of collective experience, our staff will put their expertise and knowledge to work and give your home the attention it deserves. Whether you are looking for blueprint conversion or tool sharpening services, our team will do everything they can to help you transform your home. Whether you prefer to DIY your home repair projects or want expert help, we've got your back!
Post Cap Lights from Trex fit directly onto Trex 4X4 Composite Post Sleeves. Their warm white glow points downward for easier wayfinding and beautiful ambience. And like most Trex products, Trex Post Cap Lights are manufactured in the USA. They beautifully match with the rest of Trex Deck Lighting, as well as our high-performance line of composite decking and railing, and can be quickly installed with the Trex LightHub connection system.
From air tools, compressors, hand tools, and hardware to cleaning supplies and safety gear, we carry all the tools you need to finish the job smoothly and efficiently. Feel free to visit our store or contact us with any questions you might have about your home improvement projects-our knowledgeable staff will guide you to the right tools and hardware every time.
Reviews (10)
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Joseph Giorgio
Oct 14, 2021
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.
Jul 30, 2021
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.
Tiziana Amoroso
Apr 26, 2021
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
Allie Stone
Apr 02, 2021
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 ones. I think we had two pieces that weren't great but ended up being unused extras anyway. We get lots of compliments on our deck and I've recommended them to plenty of people. My brother and father have since used them for their deck renovations and were also very happy. I'd definitely use them again!
Woke
Jun 19, 2020
Very unprofessional business! I called to see if they can work on my doors in my home and they hung up on me!
Big Daddy
Feb 27, 2020
Average place, expensive but courteous other then they don't know what they actually have in stock
Jo Ann Salmon
Jun 05, 2018
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 needs something, I need Jason to help me out with that!
Madeleine Gunderson
Jan 24, 2018
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 and Bath Design and would highly recommend them.
Tony Santini
Dec 01, 2017
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
Jun 12, 2017
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