We Deliver!

Serving homeowners & builders for over 50 years!

Commercial Lumber & Building Supply-logo Celebrate20Years


Commercial lumber offers 3 generations of knowledge and experience, servicing the industry since 1960.


Our lumber store carries a lot of products that you won't find at the big box stores. We build a relationship with every customer that comes in!

About our 3rd generation owned lumber company

Call and mention the website and get FREE local delivery within 5 miles!



Visit us at: 130 Main Street, Islip, NY 11751

Offering numerous building supplies including:

Commercial Lumber

Our expert guidance separates us from the competition