Business Details
Your Trusted Source for Building Supplies in New Jersey
Excelsior Lumber Company has been a trusted provider of building materials and home improvement solutions in New Jersey since 1880. As a family-owned business, we combine over 140 years of industry experience with a commitment to quality, offering a comprehensive selection of lumber, kitchen and bath products, tools, and specialty services. Our team of experts serves both residential and commercial clients across Bergen, Morris, Sussex, Passaic, and Essex Counties. With two convenient locations in Butler and Newark, we provide personalized service, Andersen Excellence Dealer status, and a reputation for reliability.We prioritize customer satisfaction through knowledgeable staff, competitive pricing, and a focus on sustainable, high-performance products. Our history of innovation includes expanding into kitchen and bath design in 2004, ensuring we meet evolving customer needs. We maintain strong partnerships with leading brands like Trex, Andersen, and Bosch, and offer value-added services such as lumber takeoff and tool sharpening. Our dedication to community and craftsmanship has made us a cornerstone of New Jersey's construction industry.
Services
Lumber & Lumberyards
Kitchen & Bath Design
Building Materials
Tools & Equipment
Doors Windows & Skylights
Decking & Railing
Andersen Window Repair
Lumber Takeoff
Tool Sharpening
Propane Refill
Highlights and features
- We offer over 140 years of combined experience in building materials and home improvement.
- Our team includes Andersen factory-trained window repair technicians and certified experts.
- We maintain daily lumber deliveries and stock 5/4 x 6 treated decking in 820 lengths.
- Our Butler location features a full-service kitchen and bath showroom with Wolf products.
- We provide specialized services like blueprint lumber takeoff and tool sharpening.
What people say
Excellent customer service
Top quality company
Highly recommend
Skilled and knowledgeable
Great experience
Services
Building Materials Supply
We provide high-performance building materials including treated lumber, framing lumber, and engineered wood products from Boise Cascade and Eastern Engineered Wood. Our Butler and Newark lumberyards stock decking, railing systems from Trex and Fiberon, and specialty items like Simpson Strong-Tie connectors. Daily deliveries ensure consistent availability of pressure-treated southern yellow pine and Sherwood Douglas Fir framing lumber for residential and commercial projects.
Kitchen & Bath Design
Our Butler showroom offers full-service kitchen and bath design with semi-custom and custom cabinetry from Wolf Home Products. We provide countertop material selection, hardware options, and personalized design consultations. The service includes blueprint conversion assistance and budget-friendly solutions for Morris, Bergen, Sussex, Passaic, and Essex County homeowners seeking functional, stylish renovations.
Andersen Window Repair
As an Andersen Excellence Dealer with two factory-trained technicians, we offer window repair, replacement, and installation services. We stock common repair parts and provide on-site diagnostics for Andersen product owners. Our service covers residential properties across Northern New Jersey, ensuring proper functionality and energy efficiency for both new installations and legacy window systems.
Lumber Takeoff Service
We convert blueprints into detailed lumber material lists for construction projects. For a fee, we provide accurate quantity calculations and cost estimates using trusted vendor partnerships. The service includes reimbursement if we supply the materials, helping contractors and DIY customers plan projects efficiently while ensuring proper material specifications and quantities.
Tool Sharpening
We offer professional sharpening for saw blades, axes, kitchen knives, and other cutting tools. Using third-party specialists, we ensure precise edge restoration and return tools to our Butler store for customer pickup. This service supports both professional contractors and DIY enthusiasts maintaining optimal tool performance for woodworking and home improvement projects.
People
Bob Kaslander Jr.
Vice President
Bob Kaslander Jr. has over 35 years in the lumber industry, joining Excelsior in 1989. He graduated from Bucknell University and played professional football before co-owning the company with his father. Active in local organizations, he coached youth basketball for 14 years and maintains strong ties to the Butler community.
Jason Budd
General Manager
Jason Budd oversees daily operations at Excelsior Lumber's Butler location. With extensive experience in building materials management, he ensures efficient inventory control and customer service excellence. He coordinates between sales teams and suppliers to maintain the company's reputation for reliable product availability and expert guidance.
Adam Spratt
Andersen Service Technician
Adam Spratt specializes in Andersen window and door systems as both a service technician and inside sales representative. He provides technical support for product selection and repair solutions, ensuring customers receive proper installation guidance and maintenance services for their Andersen products.
Bob Kaslander Sr.
President
Bob Kaslander Sr. has led Kaslander and Excelsior Lumber since 1980, earning Lumber Man of the Year in 1990. A US Marine and Lehigh University graduate, he transformed Morbach Lumber into a regional leader. He maintains industry leadership through associations and focuses on sustainable growth strategies.
Siobhan Abato
Kitchen and Bath Designer
Siobhan Abato specializes in kitchen and bath design consultations at Excelsior's Butler showroom. She helps clients select cabinetry, countertops, and hardware while creating customized layouts. With expertise in Wolf Home Products, she provides functional design solutions that balance aesthetics and practicality for residential renovations.
Questions
What building materials do you stock?
We carry treated lumber, framing lumber, engineered wood products, decking from Trex and Fiberon, Andersen windows, Therma-Tru doors, and Simpson railings. Custom orders are available.
Do you offer kitchen design services?
Yes, our Butler showroom provides full-service kitchen and bath design with Wolf cabinetry, countertops, and hardware. Designers help with layout, material selection, and budget planning.
Are you an Andersen window dealer?
We are an Andersen Excellence Dealer with two factory-trained technicians for window repair, installation, and replacement services in Northern New Jersey.
What are your store hours?
Butler location is open Monday-Friday 7:00 AM–4:00 PM. Newark store operates Monday-Friday 7:30 AM–4:00 PM and Saturday 7:30 AM–12:00 PM.
Do you provide tool sharpening services?
Yes, we offer professional sharpening for saw blades, axes, and knives. Tools are processed by specialists and available for pickup at our Butler store.
Can you help with blueprint material calculations?
Our lumber takeoff service converts blueprints into material lists with cost estimates. Fees are reimbursed if we supply the materials for your project.
