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  • Drainage Kits
    • Popular Manufacturers
      • TDS
      • NDS
      • POLYCAST®
      • ULMA
      • Zurn
      • All Manufacturers
    • Popular Drainage Systems
      • Dura Slope
      • Mini Channel
      • Polycast 600/700
      • Slim Channel
      • SS600
      • ULMA U100K(X)
      • All Drainage Systems
    • Channel Materials
      • Fiberglass
      • Plastic
      • Polymer Concrete
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      • Pour in Place (Concrete)
      • All Channel Materials
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      • Load Class A
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      • All Load Classes
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    • Popular Manufacturers
      • TDS
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      • All Manufacturers
    • Popular Drainage Systems
      • Dura Slope
      • FP1200
      • Mini Channel
      • Polycast 600/700
      • Slim Channel
      • SS600
      • ULMA U100K(X)
      • All Drainage Systems
    • Grate Material
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  • Trench Drain Systems natural bronze cathedral grates for NDS mini channel

    Bronze Age BA-CATH-0312 Class A Cathedral Bronze Natural Finish 3" x 12" Grate

    Bronze Age BA-CATH-0312 Class A Cathedral Bronze Natural Finish 3" x 12" Grate

    Regular price $136.00 USD
    Regular price Sale price $136.00 USD
    Unit price /  per 
  • NDS2412 Green 24" HDPE Slotted Catch Basin Grate

    NDS 2412 Class B Slotted HDPE 24" x 24" Grate - GREEN

    NDS 2412 Class B Slotted HDPE 24" x 24" Grate - GREEN

    Regular price $596.55 USD
    Regular price Sale price $596.55 USD
    Unit price /  per 
  • TDS 461D Universal Ductile Iron Grate

    TDS 461D Class E Slotted Ductile Iron 122mm x 500mm Grate

    TDS 461D Class E Slotted Ductile Iron 122mm x 500mm Grate

    Regular price $39.31 USD
    Regular price Sale price $39.31 USD
    Unit price /  per 
  • NDS-Dura-DI-232-TDSdrains

    NDS® Dura Slope Kit with DS-232 Ductile Iron Grate and Frame

    NDS® Dura Slope Kit with DS-232 Ductile Iron Grate and Frame

    Regular price From $624.96 USD
    Regular price Sale price From $624.96 USD
    Unit price /  per 
  • NDS 881 8 in grate

    NDS 881 Class A ADA Compliant Slotted HDPE 8" x 8" Grate - BLACK

    NDS 881 Class A ADA Compliant Slotted HDPE 8" x 8" Grate - BLACK

    Regular price $19.48 USD
    Regular price Sale price $19.48 USD
    Unit price /  per 
  • NDS1212S Slot HDPE Sand Catch Basin Grate

    NDS 1212S Class B ADA Compliant Slotted HDPE 12" x 12" Grate - SAND

    NDS 1212S Class B ADA Compliant Slotted HDPE 12" x 12" Grate - SAND

    Regular price $71.12 USD
    Regular price Sale price $71.12 USD
    Unit price /  per 
  • NDS-2outlet-catch-basin-4in-outlets-grn-slotted-grate-TDSdrains

    NDS 12" Catch Basin Kit with NDS Slotted Grate | Green

    NDS 12" Catch Basin Kit with NDS Slotted Grate | Green

    Regular price From $142.27 USD
    Regular price Sale price From $142.27 USD
    Unit price /  per 
  • BA-CATH-0312-D Bronze Age Cathedral Grate Ductile Iron

    Bronze Age™ BA-CATH-0312-D Ductile Iron 3" x 12" Grate - RAW

    Bronze Age™ BA-CATH-0312-D Ductile Iron 3" x 12" Grate - RAW

    Regular price $39.95 USD
    Regular price Sale price $39.95 USD
    Unit price /  per 
  • NDS999S Square slotted catch basin grate 9x9inch - Sand

    NDS 999S Class A ADA Compliant Slotted HDPE 9" x 9" Grate - SAND

    NDS 999S Class A ADA Compliant Slotted HDPE 9" x 9" Grate - SAND

    Regular price $44.54 USD
    Regular price Sale price $44.54 USD
    Unit price /  per 
  • NDS1212_Green_Plastic_Slotted_NDS_Catch_Basin_Grate_12x12

    NDS 1212 Class B ADA Compliant Slotted HDPE 12" x 12" Grate - GREEN

    NDS 1212 Class B ADA Compliant Slotted HDPE 12" x 12" Grate - GREEN

    Regular price $59.10 USD
    Regular price Sale price $59.10 USD
    Unit price /  per 
  • NDS-839-SS-FHMS-40 NDS 839 STAINLESS STEEL FLAT HEAD SCEWS BAG OF 40

    NDS 839 Screws for Pro Series 5 and Spee-D QTY-40

    NDS 839 Screws for Pro Series 5 and Spee-D QTY-40

    Regular price $12.42 USD
    Regular price Sale price $12.42 USD
    Unit price /  per 
  • NDS1812 18" Green HDPE Catch Basin Grate

    NDS 1812 Class B ADA Compliant Slotted HDPE 18" x 18" Grate - GREEN

    NDS 1812 Class B ADA Compliant Slotted HDPE 18" x 18" Grate - GREEN

    Regular price $228.39 USD
    Regular price Sale price $228.39 USD
    Unit price /  per 
  • POLYCST 600-SS Edge and DG0633 SS SQUARE DECO grate

    POLYCAST®600 Kit w/DG0633 Square Deco Perf Stainless Steel Grate & Edging | Load Class A

    POLYCAST®600 Kit w/DG0633 Square Deco Perf Stainless Steel Grate & Edging | Load Class A

    Regular price From $327.18 USD
    Regular price Sale price From $327.18 USD
    Unit price /  per 
  • TDS 3" Mini Channel Aluminum Rain Drop Natural Grate

    Bronze Age BA-RAIN-0312-A Class A Rain Drop Aluminum 3" x 12" Grate

    Bronze Age BA-RAIN-0312-A Class A Rain Drop Aluminum 3" x 12" Grate

    Regular price $91.00 USD
    Regular price Sale price $91.00 USD
    Unit price /  per 
  • NDS1218 botanical black catch basin grate

    NDS 1218 Class B ADA Compliant Botanical HDPE 12" x 12" Grate - Black

    NDS 1218 Class B ADA Compliant Botanical HDPE 12" x 12" Grate - Black

    Regular price $90.92 USD
    Regular price Sale price $90.92 USD
    Unit price /  per 
  • BA-BARS-0312-D Ductile Iron Bronze Age Bars Grate

    Bronze Age™ BA-BARS-0312-D Ductile Iron 3" x 12" Grate - RAW

    Bronze Age™ BA-BARS-0312-D Ductile Iron 3" x 12" Grate - RAW

    Regular price $39.95 USD
    Regular price Sale price $39.95 USD
    Unit price /  per 
  • BA-SLOT_0312-D TDS Bronze Age Ductile Iron Grate in Slot Pattern

    Bronze Age™ BA-SLOT-0312-D Ductile Iron 3" x 12" Grate - RAW

    Bronze Age™ BA-SLOT-0312-D Ductile Iron 3" x 12" Grate - RAW

    Regular price $39.95 USD
    Regular price Sale price $39.95 USD
    Unit price /  per 
  • ULMA D100 with 410 perforated stainless steel grate

    ULMA D100 Drain Channel w/410 Perforated w/Tread Galvanized Grate - Class A

    Sale

    ULMA D100 Drain Channel w/410 Perforated w/Tread Galvanized Grate - Class A

    Regular price From $249.86 USD
    Regular price $262.54 USD Sale price From $249.86 USD
    Unit price /  per 
    Sale
  • New Image Coming Soon

    NDS® Dura Slope In-Line Catch Basin with DS-602 Cast Iron Diamond Grate RAW

    NDS® Dura Slope In-Line Catch Basin with DS-602 Cast Iron Diamond Grate RAW

    Regular price From $672.31 USD
    Regular price Sale price From $672.31 USD
    Unit price /  per 
  • ULMA D100_462G Gatic Grate

    ULMA D100 Drain Channel w/ TDS 462G Slotted Ductile Iron Grate - Class D

    ULMA D100 Drain Channel w/ TDS 462G Slotted Ductile Iron Grate - Class D

    Regular price From $330.71 USD
    Regular price Sale price From $330.71 USD
    Unit price /  per 
  • New Image Coming Soon

    NDS® Dura Slope In-Line Catch Basin with DS-603 Cast Iron Tile Grate RAW

    NDS® Dura Slope In-Line Catch Basin with DS-603 Cast Iron Tile Grate RAW

    Regular price From $672.31 USD
    Regular price Sale price From $672.31 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 
  • NDS1218GR botanical Green catch basin grate

    NDS 1218GN Class B ADA Compliant Botanical HDPE 12" x 12" Grate - GREEN

    NDS 1218GN Class B ADA Compliant Botanical HDPE 12" x 12" Grate - GREEN

    Regular price $85.87 USD
    Regular price Sale price $85.87 USD
    Unit price /  per 
  • NDS 980 Black Plastic 9 inch Catch Basin Grate

    NDS 980 Class A ADA Compliant Slotted HDPE 9" x 9" Grate - BLACK

    NDS 980 Class A ADA Compliant Slotted HDPE 9" x 9" Grate - BLACK

    Regular price $40.64 USD
    Regular price Sale price $40.64 USD
    Unit price /  per 
  • SSK6-DG0692 SS600 with Patriot

    SS600 Stainless Steel Drain Kit w/ DG0692 Patriot Ductile Iron Grate | Class C

    SS600 Stainless Steel Drain Kit w/ DG0692 Patriot Ductile Iron Grate | Class C

    Regular price From $1,476.90 USD
    Regular price Sale price From $1,476.90 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 424 / GN100KCC, Class C, Slotted Reinforced Galvanized Steel 124mm x 1M Grate

    ULMA 424 / GN100KCC, Class C, Slotted Reinforced Galvanized Steel 124mm x 1M Grate

    $80.36 $62.50
  • ULMA 420 / GN100KCA, Class A, Slotted Galvanized Steel 122mm x 1M Grate

    ULMA 420 / GN100KCA, Class A, Slotted Galvanized Steel 122mm x 1M Grate

    $37.45 $26.22
  • LD100X-2 Locking Device for ULMA Grates

    LD100X-2 Locking Device for ULMA Grates

    $12.96 $10.08
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