Service Area

Lloyd Harbor Pool
Builders Supply Products

9 Brothers Building Supply is your Lloyd Harbor Pool Builders Supply. We carry lumber, forms, concrete products, metal, and coping needed for pool construction, repairs, or renovations. With our wide variety of products we are a one stop shop for contractors and homeowners can get an idea for their pool coping and patio by viewing our expansive collection of paving stones. Stop in at one of our locations in Brentwood or Riverhead to see our full offering of pool building products today!

Service Area

All Authentic
Pool Builders Supply Products

Grade 60 steel Available bar sizes: #3 - #11 Available epoxy coated bar sizes: #4 - #8
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Grade 60 steel Available bar sizes: #3 - #6
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All available sizes in Douglas Fir: 1/4" x 4' x 8' 3/8" x 4' x 8' 1/2" x 4' x 8' 3/4" x 4' x 8'
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2-3/8 Thick (Special Order Only) Onyx/Natural Color Shown
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2-3/8 Thick (Special Order Only) Onyx/Natural Color Shown
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2-3/8 Thick Onyx/Natural Color Shown
  • Clear
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All available Sizes in Pine: 3/8" x 4' x 8' 1/2" x 4' x 8' 5/8' x 4' x 8' 3/4' x 4' x 8'
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P2- 3 1/2″ (5FT PER PIECE)
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All available sizes: 2" x 4" in the following lengths: 8', 10', 12' 14', and 16' 2" x 6" in the following...
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The color of white cement is determined by its raw materials and the manufacturing process. Metal oxides,...
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Plastic Tips Available Sizes: 1″ 1.5″ 2″
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Services

We’ll help you through the process

Forklift Service

a mini crane service for tight or hard to reach delivery spots!

Delivery Service

with our fleet of ready to haul trucks anywhere on Long Island, NYC & 5 Boroughs

Consult Us

to build your dream backyard, driveway, landscape, pool, or patio!

Delivery across Long Island, NYC, and the 5 boroughs

Construction Site Delivery

Local Pickup

Home Delivery

Contractor & Local Business Deliveries

Send us a Message

Stop in or get in touch!

Plainview Building Supply

1670 Islip Ave. Brentwood, NY
11717 Phone: (631) 273-3323

Rockville Centre Building Supply

28 Mill Road Riverhead, NY
11901 Phone: (631) 208-1630

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