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      • TDS
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      • All Drainage Systems
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  • nds836 Pro Series plastic pedestrian slotted grate

    NDS 836 Class A Slotted Pedestrian Polyolefin 8" x 24" Grate

    NDS 836 Class A Slotted Pedestrian Polyolefin 8" x 24" Grate

    Regular price $110.76 USD
    Regular price Sale price $110.76 USD
    Unit price /  per 
  • NDS834 end outlet/end cap Pro series 8

    NDS 834 Pro Series 8 Deep Profile End Cap Knockout End Outlet

    NDS 834 Pro Series 8 Deep Profile End Cap Knockout End Outlet

    Regular price $58.65 USD
    Regular price Sale price $58.65 USD
    Unit price /  per 
  • NDS833

    NDS 833 Pro Series 8 Channel Drain, Deep Light Gray

    NDS 833 Pro Series 8 Channel Drain, Deep Light Gray

    Regular price $92.75 USD
    Regular price Sale price $92.75 USD
    Unit price /  per 
  • NDS830 8x20 shallow profile pro series 8

    NDS 830 Pro Series 8 Shallow Profile Channel Drain

    NDS 830 Pro Series 8 Shallow Profile Channel Drain

    Regular price $75.62 USD
    Regular price Sale price $75.62 USD
    Unit price /  per 
  • NDS 832 Pro Series 8 Shallow Profile Side Outlet

    NDS 832 Pro Series 8 Shallow Profile Side Outlet

    NDS 832 Pro Series 8 Shallow Profile Side Outlet

    Regular price $154.41 USD
    Regular price Sale price $154.41 USD
    Unit price /  per 
  • NDS833

    NDS® Pro Series 8 Deep Channel Drain Kit w/ Carbochon Grate BoOF

    NDS® Pro Series 8 Deep Channel Drain Kit w/ Carbochon Grate BoOF

    Regular price From $477.42 USD
    Regular price Sale price From $477.42 USD
    Unit price /  per 
  • NDS831 Shallow channel end cap/outlet

    NDS 831 Pro Series 8 Channel End Cap / Knockout End Outlet

    NDS 831 Pro Series 8 Channel End Cap / Knockout End Outlet

    Regular price $48.50 USD
    Regular price Sale price $48.50 USD
    Unit price /  per 
  • NDS888-ductile-iron-slot-grate

    NDS 888 Class C Slotted Ductile Iron Grate 8" x 20" (Nominal Dimensions)

    NDS 888 Class C Slotted Ductile Iron Grate 8" x 20" (Nominal Dimensions)

    Regular price $245.10 USD
    Regular price Sale price $245.10 USD
    Unit price /  per 
  • 837_8inx20in_PedestrianTraffic-2671655952-O-L

    NDS 837 Class B Slotted Traffic Polyolefin Grate 8" x 20" (Nominal Dimensions)

    NDS 837 Class B Slotted Traffic Polyolefin Grate 8" x 20" (Nominal Dimensions)

    Regular price $113.12 USD
    Regular price Sale price $113.12 USD
    Unit price /  per 
  • NDS826-lt-grey-perf-grate 5″ Pro Series Grey Perf grate by NDS

    NDS 826 Class A Perforated HDPE 5" x 20" Grate - Light Gray

    NDS 826 Class A Perforated HDPE 5" x 20" Grate - Light Gray

    Regular price $88.17 USD
    Regular price Sale price $88.17 USD
    Unit price /  per 
  • NDS847-12x20 poly grate

    NDS 847 Class B Slotted High-Impact PVC 12" x 20" (Nominal) Grate - GRAY

    NDS 847 Class B Slotted High-Impact PVC 12" x 20" (Nominal) Grate - GRAY

    Regular price $257.12 USD
    Regular price Sale price $257.12 USD
    Unit price /  per 
  • NDS840

    NDS 840 Pro Series 12 Shallow Profile Channel Drain, Light Gray

    NDS 840 Pro Series 12 Shallow Profile Channel Drain, Light Gray

    Regular price $251.15 USD
    Regular price Sale price $251.15 USD
    Unit price /  per 
  • NDS 764 Pro Series 3 Drain Kit

    NDS 764 Pro Series 3 Drain Kit

    NDS 764 Pro Series 3 Drain Kit

    Regular price $68.62 USD
    Regular price Sale price $68.62 USD
    Unit price /  per 
  • NDS714-3in-pro3-plastic-grate (1)

    NDS 714 Class B Slotted HDPE 3" x 20" Grate - Light Gray

    NDS 714 Class B Slotted HDPE 3" x 20" Grate - Light Gray

    Regular price $18.40 USD
    Regular price Sale price $18.40 USD
    Unit price /  per 
  • NDS844 12" wide deep profile end cap S&D pipe

    NDS 844 Pro Series 12 12 Deep Profile End Cap Knockout End Outlet

    NDS 844 Pro Series 12 12 Deep Profile End Cap Knockout End Outlet

    Regular price $132.89 USD
    Regular price Sale price $132.89 USD
    Unit price /  per 
  • NDS812 Pro Series End Cap

    NDS 812 Pro Series 5 End Cap

    NDS 812 Pro Series 5 End Cap

    Regular price $12.61 USD
    Regular price Sale price $12.61 USD
    Unit price /  per 
  • NDS822 pro-series5 shallow profile bottom outlet/side outlet

    NDS 822 Pro Series 5 Shallow Profile Bottom Outlet/Side Outlet

    NDS 822 Pro Series 5 Shallow Profile Bottom Outlet/Side Outlet

    Regular price $59.99 USD
    Regular price Sale price $59.99 USD
    Unit price /  per 
  • NDS 843 Pro Series 12 Profile Channel Drain, Deep Light Gray

    NDS 843 Pro Series 12 Profile Channel Drain, Deep Light Gray

    NDS 843 Pro Series 12 Profile Channel Drain, Deep Light Gray

    Regular price $355.73 USD
    Regular price Sale price $355.73 USD
    Unit price /  per 
  • NDS862-45-deg NDS pro series 5

    NDS 862 Pro Series 5 - 45 Degree Elbow

    NDS 862 Pro Series 5 - 45 Degree Elbow

    Regular price $122.87 USD
    Regular price Sale price $122.87 USD
    Unit price /  per 
  • nds828

    NDS 828 Class C H-20 Slotted High Impact Nylon 5" x 20" Grate

    NDS 828 Class C H-20 Slotted High Impact Nylon 5" x 20" Grate

    Regular price $176.57 USD
    Regular price Sale price $176.57 USD
    Unit price /  per 
  • nds815-green-grate pro series 5

    NDS 815 Class B ADA Compliant Light Traffic HDPE 5" x 20" Grate - GREEN

    NDS 815 Class B ADA Compliant Light Traffic HDPE 5" x 20" Grate - GREEN

    Regular price $39.03 USD
    Regular price Sale price $39.03 USD
    Unit price /  per 
  • NDS841 shallow profile endcap 3/4 spt knock out end outlet

    NDS 841 Pro Series 12 Channel Shallow Profile End Cap Knockout End Outlet

    NDS 841 Pro Series 12 Channel Shallow Profile End Cap Knockout End Outlet

    Regular price $98.45 USD
    Regular price Sale price $98.45 USD
    Unit price /  per 
  • Pro Series 5-NDS800

    NDS 800 Pro Series 5 Deep Profile Channel Drain

    NDS 800 Pro Series 5 Deep Profile Channel Drain

    Regular price $80.10 USD
    Regular price Sale price $80.10 USD
    Unit price /  per 
  • NDS Pro Series 5 - Shallow NDS820

    NDS 820 Pro Series 5 Shallow Profile Half Channel Drain, Light Gray

    NDS 820 Pro Series 5 Shallow Profile Half Channel Drain, Light Gray

    Regular price $58.64 USD
    Regular price Sale price $58.64 USD
    Unit price /  per 
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Resources

Shipping / Returns

Determining Your Grate Size

Load Class Chart

Installer Map

Drainage News

  • How Do You Clean Out a Trench Drain Without Damaging It?

    May 27, 2026
  • What is Load Class and Why Is It Important?

    Feb 23, 2024
  • Keeping Livestock Safe – Grate Ideas

    Feb 02, 2024
  • TDS Bronze Age™ Collection

    Oct 31, 2023

On Sale

  • ULMA HYDROPLUS Mini w/ BARS Ductile Iron Grate Class C

    ULMA HYDROPLUS Mini w/ BARS Ductile Iron Grate Class C

    $237.16 $183.00
  • ULMA HYDROPLUS Mini w/ FERN Ductile Iron Grate Class C

    ULMA HYDROPLUS Mini w/ FERN Ductile Iron Grate Class C

    $237.16 $183.00
  • ULMA HYDROPLUS Mini w/ CATHEDRAL Ductile Iron Grate Class C

    ULMA HYDROPLUS Mini w/ CATHEDRAL Ductile Iron Grate Class C

    $237.16 $183.00
Shop All

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