Business Details
50+ Years
experience
Your Trusted Source for Lumber & Building Materials
Founded in 1946, Speonk Lumber has been a trusted family-owned supplier of premium lumber and building materials for residential and commercial projects. Our expertise spans decades, offering products from industry leaders like Andersen Windows and Marvin Doors, alongside personalized service tailored to both small-scale renovations and large-scale construction. We prioritize customer satisfaction through competitive pricing, reliable delivery, and a team of seasoned professionals dedicated to guiding clients through every project phase. Our commitment to quality and community has solidified our reputation as a leader in the building materials industry, serving Long Island and Connecticut with integrity and unmatched expertise. 
Services
Lumber Supply
Door Sales
Millwork
Deck Materials
Hardware
Siding & Roofing
Window Sales
Stair Parts
Moulding
Flooring
Details
- Year established: 1946
Highlights and features
- We are family-owned with over 75 years of industry experience.
- Our team provides expert guidance for all construction needs.
- We offer competitive pricing on top-brand products like Andersen Windows.
- We deliver reliable, on-time service across Long Island and Connecticut.
- Our product selection spans lumber, doors, millwork, and more.
Services
Lumber Supply
Speonk Lumber offers a comprehensive selection of framing lumber, trim boards, plywood, and engineered wood products. We stock hardwood and softwood species like Douglas fir, cedar, and pine, ensuring solutions for structural and decorative needs. Our inventory includes pressure-treated lumber and drywall from trusted brands, supporting projects of all scales.
Door Sales
We provide exterior, interior, and commercial doors from leading manufacturers like Andersen and Masonite. Our offerings include entry doors, storm doors, and patio doors, with prefinishing services available. Our experts help clients select durable, stylish options that meet security, energy efficiency, and design requirements for residential and commercial spaces.
Millwork
Our millwork department features columns, post wraps, stair parts, and architectural mouldings in diverse styles and materials. These products enhance both interior and exterior aesthetics, offering rot-resistant options for long-lasting beauty. We cater to projects requiring intricate detailing or standard finishing touches.
Deck Materials
We supply hardwood, cedar, and synthetic composite decking and railing systems for durable, low-maintenance outdoor spaces. Our inventory includes fasteners, lighting, and post caps to complete any deck project. Our team advises on material selection based on climate, usage, and design preferences.
Hardware
Speonk Lumber offers a wide range of architectural hardware, including hinges, locks, levers, and specialty items for commercial and residential applications. We also stock kitchen and bath hardware, tools, and fasteners, ensuring clients find functional and decorative solutions for any project.
Questions
What products does Speonk Lumber offer?
We provide lumber, doors, windows, millwork, decking, hardware, siding, roofing, and flooring for residential and commercial projects.
Do you deliver materials to job sites?
Yes, we offer reliable delivery with a fleet of trucks, including flatbeds and boom trucks, for timely service.
Are your products available for small projects?
Yes, we cater to both large-scale construction and small home improvement projects with personalized service.
Do you have locations outside New York?
Yes, we operate in Lisbon, CT, serving customers across the Northeast region.
Can you assist with project estimates?
Our team provides detailed estimates for framing lumber, engineered lumber, and millwork to ensure accurate budgeting.
Reviews (5)
Richard Albano
Jul 26, 2021
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PLEASE READ. The owner of Speonk Bldg Supply is Shane. He is not a man of his word and then he will avoid you. Shane you gave me your word that you would remove the lien on my home. Correct? You are no better than Charley from Exteriors of Long Island. Charley has liens on 12 homes in the area because he doesn't pay his bills and dozens of deposits taken without ever showing up to do any of the work or leaving N.Y. Rising jobs / customers homeless.
Yes homeless. Not to mention not paying his subs and his own employees. You could have helped the situation! Correct Shane? Am I lying? Avoid people that you can't trust. To ALL my contractor friends and neighbors. Avoid Speonk Bldg Supply and avoid Exteriors of Long Island!
Yes homeless. Not to mention not paying his subs and his own employees. You could have helped the situation! Correct Shane? Am I lying? Avoid people that you can't trust. To ALL my contractor friends and neighbors. Avoid Speonk Bldg Supply and avoid Exteriors of Long Island!
M. P.
Jun 22, 2020
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SUPER service at Speonk Lumber. They replaced two windows and a sliding door. The team was fast and kept a tidy job. Mickey was GREAT, and helped us from day 1. He saw us through the project to the install day. He came by a few times to answer questions we had, and made sure we were comfortable and happy with the choices we made.
Jon Zimmerman
Feb 01, 2020
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I went in two by one two by four.the guy brings me a two-by-four that looks like it was on the bottom of the truck and used as a pry bar. the next to buy for he brings me is warped like a bow from a bow and arrow. I found the staff to be very sullen and uncaring to a retail customer. I asked for my money back and went to home Depot
Joe Burns
May 06, 2019
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I am a local custom home builder and Speonk Lumber has been supplying all my projects for over 30 yrs. The personal service, quality material, fast deliveries and great pricing is what keeps me loyal to Speonk Lumber. Peter B. and his outside sales team is like having my own sales force, they have helped us find creative ways to land numerous projects and the constant contact and follow ups helps keep us focused on the task at hand. Speonk Lumber = Price, Quality and Service HIGHLY RECOMMENDED!
Dennis Ketcham
May 12, 2012
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I really like speonk lumber. Their selection isn't as vast as some of their competitors but what they do, they do great.
