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Lumber & Building Materials

East Islip Lumber carries a large assortment of materials for all your building needs, and we only stock quality products. Our lumber is of a higher grade than you’ll find at those big box stores and even better than you’ll find at most other lumber yards. We also carry Marine Lumber, Dock Lumber, Industrial lumber, and hardwoods, along with LVLs and Mason Supplies. Any kind of wood can be special ordered to your exact needs.


We also have a complete hardware store; if we don’t stock the product you need, we can get it in for you within a matter of days. 


  • FRAMING LUMBER: Doug Fir, Common and Clear Cedar, Common and Clear Pine, & Pressure Treated Yellow Pine (including CCA for dock builders and municipalities).


  • HARDWOODS: Oak, Maple, Poplar, & Mahogany


  • ENGINEERED WOOD: LVLs 7-1/4”, 9-1/2”, 11-7/8” & 14”


  • PLYWOODS: We carry a full line of CDX, AC, and underlayment plywoods, as well as pressure treaterd and select hardwood species. If you have questions about the best plywood for your application, let our experts steer you the right way. Oriented Strand Board (OSB) also kept in stock.


  • INSULATION: We stock a robust assortment of faced and unfaced fiberglass insulation, as well as Roxul, Blue Board, Foam board, & Housewrap.


  • FENCING: 6x8 stockade fence, Snow fence, T-posts, U-posts,


  • MASONRY SUPPLIES: Drywall, Concrete and sand mix, Portland cement, & concerete block. 


  • CONSTRUCTION HARDWARE: Full line of Simpson steel connectors and joist hangers, and collated nails, many stocked in STAINLESS STEEL. Dock hardware, Timber bolts, and threaded rods also in stock.

Browse all of our quality lumber & building materials


NuCedar Mills

The beauty of cedar siding without the maintenance. 

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