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Drainage Kits
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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
      • Stainless Steel
      • Pour in Place (Concrete)
      • All Channel Materials
    • Load Class
      • Load Class A
      • Load Class B
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      • Load Class D
      • Load Class E
      • Load Class F
      • All Load Classes
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    • Popular Manufacturers
      • TDS
      • Bronze Age
      • NDS
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      • Polylok
      • ULMA
      • Zurn
      • 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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      • Bronze
      • Ductile/Cast Iron
      • Fiberglass
      • Galvanized Steel
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  • DG0646 Galvanized Steel perforated grates for POLYCAST

    POLYCAST DG0646H Class A ADA Compliant Perforated Galvanized Steel 6" x 24" Grate

    POLYCAST DG0646H Class A ADA Compliant Perforated Galvanized Steel 6" x 24" Grate

    Regular price $60.91 USD
    Regular price Sale price $60.91 USD
    Unit price /  per 
  • NDS-Dura-Slope-DS-661-TDSdrains gray slotted

    NDS® DS-661 Class B ADA Compliant Slotted Polyolefin 6" x 24" Grate - DARK GRAY

    NDS® DS-661 Class B ADA Compliant Slotted Polyolefin 6" x 24" Grate - DARK GRAY

    Regular price $111.16 USD
    Regular price Sale price $111.16 USD
    Unit price /  per 
  • NDS554S-Wave-Sand-Grate-TDS

    NDS 554S Class B ADA Compliant Botanical Polyolefin 3" x 36" Grate - SAND

    NDS 554S Class B ADA Compliant Botanical Polyolefin 3" x 36" Grate - SAND

    Regular price $62.16 USD
    Regular price Sale price $62.16 USD
    Unit price /  per 
  • nds540-white-slotted-grate-TDS

    NDS 540 Class B ADA Compliant Heel-Proof HDPE 3" x 36" Grate - WHITE

    NDS 540 Class B ADA Compliant Heel-Proof HDPE 3" x 36" Grate - WHITE

    Regular price $48.80 USD
    Regular price Sale price $48.80 USD
    Unit price /  per 
  • DG0646R Galvanized Grates

    POLYCAST DG0646R Class C ADA Compliant Perforated Reinforced Galvanized 6" x 48" Grate

    POLYCAST DG0646R Class C ADA Compliant Perforated Reinforced Galvanized 6" x 48" Grate

    Regular price $612.04 USD
    Regular price Sale price $612.04 USD
    Unit price /  per 
  • NDS1224CI-BF NDS 12x12" Baked on Oil Finish Cast Iron Catch Basin Grate

    NDS 1224CI-BF Class B ADA Compliant Wave Cast Iron 12" x 12" Grate - BoOF

    NDS 1224CI-BF Class B ADA Compliant Wave Cast Iron 12" x 12" Grate - BoOF

    Regular price $511.98 USD
    Regular price Sale price $511.98 USD
    Unit price /  per 
  • NDS 542 - Box of 16 - Class B ADA Compliant Slotted HDPE 3" x 36" Grate - GREEN

    NDS 542 - Box of 16 - Class B ADA Compliant Slotted HDPE 3" x 36" Grate - GREEN

    NDS 542 - Box of 16 - Class B ADA Compliant Slotted HDPE 3" x 36" Grate - GREEN

    Regular price $780.78 USD
    Regular price Sale price $780.78 USD
    Unit price /  per 
  • NDS 540 - Box of 16 - Class B ADA Compliant Slotted HDPE 3" x 36" Grate - WHITE

    NDS 540 - Box of 16 - Class B ADA Compliant Slotted HDPE 3" x 36" Grate - WHITE

    NDS 540 - Box of 16 - Class B ADA Compliant Slotted HDPE 3" x 36" Grate - WHITE

    Regular price $780.78 USD
    Regular price Sale price $780.78 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 $98.49 USD
    Regular price Sale price $98.49 USD
    Unit price /  per 
  • grey wave mini channel NDS

    NDS 253GY Class B ADA Compliant Wave HDPE 4" x 24" (Nominal) Grate - GRAY

    NDS 253GY Class B ADA Compliant Wave HDPE 4" x 24" (Nominal) Grate - GRAY

    Regular price $92.37 USD
    Regular price Sale price $92.37 USD
    Unit price /  per 
  • NDS-Dura-665-TDSdrains brick red slotted

    NDS DS-665 Class B ADA Compliant Slotted Polyolefin 6" x 24" Grate - BRICK RED

    NDS DS-665 Class B ADA Compliant Slotted Polyolefin 6" x 24" Grate - BRICK RED

    Regular price $117.33 USD
    Regular price Sale price $117.33 USD
    Unit price /  per 
  • DS 232

    NDS® DS-232 Class D ADA-Compliant Slotted Ductile Iron 6" x 24" Grate

    NDS® DS-232 Class D ADA-Compliant Slotted Ductile Iron 6" x 24" Grate

    Regular price $158.01 USD
    Regular price Sale price $158.01 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 $118.53 USD
    Regular price Sale price $118.53 USD
    Unit price /  per 
  • P4-HPP Standard ZURN_Z884_grate

    Zurn P4-HPP Class A ADA Compliant Slotted HDPE 4" x 20" Grate - LIGHT GRAY

    Zurn P4-HPP Class A ADA Compliant Slotted HDPE 4" x 20" Grate - LIGHT GRAY

    Regular price $65.00 USD
    Regular price Sale price $65.00 USD
    Unit price /  per 
  • NDS990_Green_Catch_Basin_Grate_9x9

    NDS 990 Class A ADA Compliant Slotted HDPE 9" x 9" Grate - GREEN

    NDS 990 Class A ADA Compliant Slotted HDPE 9" x 9" Grate - GREEN

    Regular price $74.27 USD
    Regular price Sale price $74.27 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 $74.23 USD
    Regular price Sale price $74.23 USD
    Unit price /  per 
  • NDS-252GR-TDSdrains NDS Spee-D Channel Grate in green botanical

    NDS 252GR Class B ADA Compliant Heel-Proof Botanical HDPE 4" x 24" Grate - GREEN

    NDS 252GR Class B ADA Compliant Heel-Proof Botanical HDPE 4" x 24" Grate - GREEN

    Regular price $97.79 USD
    Regular price Sale price $97.79 USD
    Unit price /  per 
  • P4-HPP-BLACK ZURN_Z884_grate

    Zurn P4-HPP-BLACK Class A ADA Compliant Slotted HDPE 4" x 20" Grate - BLACK

    Zurn P4-HPP-BLACK Class A ADA Compliant Slotted HDPE 4" x 20" Grate - BLACK

    Regular price $65.00 USD
    Regular price Sale price $65.00 USD
    Unit price /  per 
  • DG0646R Galvanized Grates

    POLYCAST DG0646RH Class C ADA Compliant Perforated Reinforced Galvanized 6" x 24" Grate

    POLYCAST DG0646RH Class C ADA Compliant Perforated Reinforced Galvanized 6" x 24" Grate

    Regular price $232.97 USD
    Regular price Sale price $232.97 USD
    Unit price /  per 
  • NDS 544 - Box of 16 - Class B ADA Compliant Slotted HDPE 3" x 36" Grate - SAND

    NDS 544 - Box of 16 - Class B ADA Compliant Slotted HDPE 3" x 36" Grate - SAND

    NDS 544 - Box of 16 - Class B ADA Compliant Slotted HDPE 3" x 36" Grate - SAND

    Regular price $780.78 USD
    Regular price Sale price $780.78 USD
    Unit price /  per 
  • P4-HPP-WHITE_ZURN_Z884 grate

    Zurn P4-HPP-WHITE Class A ADA Compliant Slotted HDPE 4" x 20" Grate - WHITE

    Zurn P4-HPP-WHITE Class A ADA Compliant Slotted HDPE 4" x 20" Grate - WHITE

    Regular price $65.00 USD
    Regular price Sale price $65.00 USD
    Unit price /  per 
  • ZURN P6-PPC Vinyl ester perforated grate

    ZURN P6-PPC Perforated Plastic Grate ADA Compliant 6″ x 20″ (Nominal) | Class B

    ZURN P6-PPC Perforated Plastic Grate ADA Compliant 6″ x 20″ (Nominal) | Class B

    Regular price $320.00 USD
    Regular price Sale price $320.00 USD
    Unit price /  per 
  • NDS554-black-botanical-grate-TDS

    NDS 554 Class B ADA Compliant Botanical Polyolefin 3" x 36" Grate - BLACK

    NDS 554 Class B ADA Compliant Botanical Polyolefin 3" x 36" Grate - BLACK

    Regular price $62.16 USD
    Regular price Sale price $62.16 USD
    Unit price /  per 
  • Zurn P6-RFSC

    Zurn P6-FG-20 Class A ADA Compliant Slotted Heel-Proof Galvanized Steel 6" x 20" Grate

    Zurn P6-FG-20 Class A ADA Compliant Slotted Heel-Proof Galvanized Steel 6" x 20" Grate

    Regular price $107.00 USD
    Regular price Sale price $107.00 USD
    Unit price /  per 
  • P4-HPP-BROWN_ ZURN Z884 grate

    Zurn P4-HPP-BROWN Class A ADA Compliant Slotted HDPE 4" x 20" Grate - BROWN

    Zurn P4-HPP-BROWN Class A ADA Compliant Slotted HDPE 4" x 20" Grate - BROWN

    Regular price $65.00 USD
    Regular price Sale price $65.00 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 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
  • 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

    $89.29
  • LD100X-2 Locking Device for ULMA Grates

    LD100X-2 Locking Device for ULMA Grates

    $14.40
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