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2175 5th Ave, Ronkonkoma, NY

Premium Custom Lumber & Architectural Materials for Extraordinary Designs

New York’s leading supplier of FSC-certified tropical hardwood and thermally modified wood—expertly milled and customizable for architects, builders, and homeowners who demand materials that perform.

WE DELIVER ANYWHERE IN NY + CT

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VISIT OUR LONG ISLAND SHOWROOM

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SERVING NEW YORK, CONNECTICUT, AND SOUTH JERSEY

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WE DELIVER ANYWHERE IN NY + CT | VISIT OUR LONG ISLAND SHOWROOM | SERVING NEW YORK, CONNECTICUT, AND SOUTH JERSEY |

Shop everything you need
for your outdoors.

Backed by 20 and 50-Year Warranties

Trusted by builders, designers, architects, and luxury homeowners, our lumber is the number one choice for high-end projects built to last.

Visit our Long Island showroom to explore our inventory and plan your next project.

Built To Last for Generations

Lumber Plus is your direct source for high-end architectural wood across Long Island, CT, and Jersey.

Skip the delays with our boutique service or grab a free sample to help you better envision the space.

Your Partner in Performance

Don’t let supply chain issues stall your build. Get instant clarity on inventory, transparent pricing, and reliable lead times.

From custom milling to pre-finishing, we deliver your materials ready for the crew, exactly when you need them.

GET THE SUPPORT YOU NEED

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CALL US AT (934) 949-2639

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GET THE SUPPORT YOU NEED

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CALL US AT (934) 949-2639

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GET THE SUPPORT YOU NEED | CALL US AT (934) 949-2639 | GET THE SUPPORT YOU NEED | CALL US AT (934) 949-2639 |

Experience the Materials in Person

A Showroom Worth Bringing Clients To

Our Ronkonkoma showroom features premium hardwoods, thermally modified wood, and full-scale wall and ceiling applications so you can compare and specify materials with confidence.

📍 2175 5th Ave, Ronkonkoma, NY
📱 (934) 949-2639

THE GOLD STANDARD IN SUSTAINABLE LUMBER

↓ SHOP NORTH AMERICA’S FAVORITE DECKING MATERIALS. ↓

  • Hardwood

    Experience the warmth, natural beauty, and enduring elegance that quality hardwood brings to any design. Backed by our 50-Year warranty, you can be confident you’re transforming your outdoors into a welcoming, stunning space for decades. 

  • Composite

    Designed for durability and low maintenance, composite decking is resistant to fading, staining, scratching, mold, and rot. Perfect for high traffic and weather-exposed areas, it keeps outdoor surfaces looking flawless year after year. 

  • Hardwood

    Experience the warmth, natural beauty, and enduring elegance that quality hardwood brings to any design. Backed by our 50-Year warranty, you can be confident you’re transforming your outdoors into a welcoming, stunning space for decades. 

  • Composite

    Designed for durability and low maintenance, composite decking is resistant to fading, staining, scratching, mold, and rot. Perfect for high traffic and weather-exposed areas, it keeps outdoor surfaces looking flawless year after year. 

↓ SHOP NORTH AMERICA’S FAVORITE WALL & CEILING MATERIALS↓

  • Thermowood

    Combining lightweight strength with natural sophistication, Thermowood is ideal for walls, ceilings, facades, accents, pergolas, and more. Its easy installation and natural elegance upgrade any space, and with a 20-year warranty, it offers peace of mind for every build. 

  • Tropical Hardwood

    Choose from a variety of beautiful, water-resistant hardwoods that complement a variety of architectural styles. With dense grain that provides a natural resilience to environmental stressors, tropical hardwood is a striking choice for your wall or ceiling. 

  • Composite

    Composite cladding offers a refined, low-maintenance alternative to traditional materials, blending longevity with modern sophistication. Resistant to termites, erosion, and moisture, it protects your exterior and provides a sophisticated appearance and minimal upkeep for decades. 

↓ SHOP ADDITIONAL BUILDING MATERIALS ↓

LET’S DISCUSS YOUR PROJECT

Don’t let your project stall. Get immediate clarity on inventory levels, current lead times, and competitive pricing. Whether you’re looking for a quick stock check or a full material takeoff, our team is on stand-by to keep your crew moving.

Trusted Across NY & CT

“Nice show room! They got everything I needed for my decking project. Really recommend! All high end material.”


- Nicoly B

“From Ipe to Thermowood, they’ve got every kind of lumber I need. Solid selection.”

- Henrique G

Frequently Asked Questions