Doors and Windows

Build to Last

Excelsior Lumber and Kaslander Lumber carry a wide variety of quality doors, windows, and accessories. We stock many popular product lines and do countless custom orders to meet all your project needs. Excelsior Lumber is also a proud Andersen® Excellence Dealer and one of the area’s only Andersen dealers with two Andersen service technicians.

Andersen Windows

Established in 1903, Andersen is renowned for its high-performance and exceptional quality of products. Andersen is the largest manufacturer of windows and doors in North America, allowing you design your own windows and doors or choose from its extensive collections. Excelsior Lumber is one of the only local dealers to employ two Andersen service technicians. To learn more about Andersen service, please call 973-838-1515.


VELUX is the world leader in high-end roof windows, skylights and sun tunnels, offering a complete system of complementary products and accessories for any skylight solution – from installation right down to the finishing touches.


Therma-Tru entry door systems are the brand that many building professionals prefer. Every line of steel or fiberglass doors by Therma-Tru comes with a package of performance and value. With a front door by Therma-Tru, you won’t only see an increase in comfort, energy efficiency and performance, but also curb appeal.


Inspired by true millwork craftsmanship, Masonite manufactures a comprehensive selection of both exterior and interior choices, giving customers access to the styles, finishes, and details to tailor a look that flows seamlessly from room to room. Excelsior Lumber and Kaslander Lumber are both Masonite dealers.


Simpson's comprehensive line of interior and exterior stile and rail doors includes hundreds of standard options from panel to French to decorative entry doors with matching sidelights and transoms. Available in a variety of wood species, sizes and glass options, Simpson provides customers with the door they desire, whether it is a standard design or a one-of-a-kind custom door. Both Excelsior and Kaslander are Simpson dealers.

Neuma Doors

Seamless integration of sophisticated style, intelligent design, and unprecedented quality defines a Neuma Door. With 30 years of creative design, and research and development, Neuma Doors offers a wide array of the world’s leading fiberglass patio door systems. Both Excelsior Lumber and Kaslander Lumber are dealers for Neuma Doors.


Family-owned Larson Manufacturing has grown into the largest manufacturer of storm doors and storm windows in the United States. With more than 60 years in business and 20 patents, you can expect Larson to deliver. Larson makes retractable screen doors, full-view and partial-view storm doors, decorative glass doors, and even unique pet entrance storm doors with a variety of colors and hardware finishes for customization—all proudly manufactured in the USA. Excelsior Lumber and Kaslander Lumber are Larson dealers.

Rogue Valley Door

Within walking distance to the Rogue River and the Cascade Mountains in Oregon, Rogue Valley Door has direct access to some of the world's finest lumber. The very highest grade Douglas Fir and Ponderosa Pine are carefully kiln-dried to ensure maximum strength and superior quality. These distinctive doors grace any home with natural beauty that will last a lifetime. Excelsior Lumber and Kaslander Lumber are Rogue Valley Door dealers.


JELD-WEN is one of the world’s leading manufacturers of reliable windows and doors, including exterior doors, interior doors, patio doors, and related building products. JELD-WEN’s secret to longer-lasting wood windows and doors is an exclusive manufacturing process that protects against wood rot, water saturation, and termites. This process is how they make AuraLast Wood. Unlike dip-treated wood, JELD-WEN’s vacuum-pressure process forces the protective ingredients all the way through to the core of the wood for virtually 100 percent penetration.

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