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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
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      • Load Class A
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      • Load Class E
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      • All Load Classes
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    • Popular Manufacturers
      • TDS
      • Bronze Age
      • NDS
      • Polycast
      • 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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      • Ductile/Cast Iron
      • Fiberglass
      • Galvanized Steel
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  • NDS-247-TDSdrains

    NDS 247 Channel End Cap for NDS® Spee-D Channel

    NDS 247 Channel End Cap for NDS® Spee-D Channel

    Regular price $8.73 USD
    Regular price Sale price $8.73 USD
    Unit price /  per 
  • ULMA U100K Drain Channel kit w/ Bronze Age™ Luna Grate-RAW

    ULMA U100K Drain Channel kit w/ Bronze Age™ Luna Grate-RAW

    Sale

    ULMA U100K Drain Channel kit w/ Bronze Age™ Luna Grate-RAW

    Regular price From $155.28 USD
    Regular price $174.64 USD Sale price From $155.28 USD
    Unit price /  per 
    Sale
  • NDS1224_Wave_12_inch_Basin_DECO_Grate_-_Black_1024x1024

    NDS 1224 Class B ADA Compliant Wave HDPE 12" x 12" Grate -BLACK

    NDS 1224 Class B ADA Compliant Wave HDPE 12" x 12" Grate -BLACK

    Regular price $92.53 USD
    Regular price Sale price $92.53 USD
    Unit price /  per 
  • MCKS-BA-cath-0336 Sand Mini Channel with Cathedral Stainless Steel Grates

    3" Sand NDS Mini Channel Kit w/Cathedral 316L Stainless Steel HP Grates

    3" Sand NDS Mini Channel Kit w/Cathedral 316L Stainless Steel HP Grates

    Regular price From $312.47 USD
    Regular price Sale price From $312.47 USD
    Unit price /  per 
  • NDS-Dura-XX-232 NDS Duraslope with a Ductile Iron Slotted grate

    NDS Dura Slope Kit with DS-232 Ductile Iron Grate - 6"

    NDS Dura Slope Kit with DS-232 Ductile Iron Grate - 6"

    Regular price From $475.22 USD
    Regular price Sale price From $475.22 USD
    Unit price /  per 
  • POLY600-SS-641D-TDSdrains stainless steel edge slotted cast iron grate polymer concrete channel Polycast

    POLYCAST 600 Series Kit with DG0641D Slotted Ductile Iron Grate and Galvanized Edging

    POLYCAST 600 Series Kit with DG0641D Slotted Ductile Iron Grate and Galvanized Edging

    Regular price From $237.04 USD
    Regular price Sale price From $237.04 USD
    Unit price /  per 
  • ULMA U100K with 486 Vinyl Ester 0.9 FRP Grate

    ULMA U100K Drainage Kit with TDS Vinyl Ester Bar Grate 0.9″ on center - Class B

    Sale

    ULMA U100K Drainage Kit with TDS Vinyl Ester Bar Grate 0.9″ on center - Class B

    Regular price From $450.41 USD
    Regular price $569.10 USD Sale price From $450.41 USD
    Unit price /  per 
    Sale
  • NDS970 6inch diameter strium sand grate

    NDS090S Atrium HDPE 6" Dia. Grate - Sand

    NDS090S Atrium HDPE 6" Dia. Grate - Sand

    Regular price $24.14 USD
    Regular price Sale price $24.14 USD
    Unit price /  per 
  • BA-LUNA-0312-BF TDS Bronze Age Luna Grate in Ductile Iron with BoOF finish

    Bronze Age™ BA-LUNA-0312-BF Ductile Iron 3" x 12" Grate -BoOF

    Bronze Age™ BA-LUNA-0312-BF Ductile Iron 3" x 12" Grate -BoOF

    Regular price $64.95 USD
    Regular price Sale price $64.95 USD
    Unit price /  per 
  • PCK6-DG0632-SE Stainless Steel Foam Perforated with Edging

    POLYCAST 600 Series Kit w/ Load Class A DG0632 Foam Perforated Stainless Steel Grates & Edging

    POLYCAST 600 Series Kit w/ Load Class A DG0632 Foam Perforated Stainless Steel Grates & Edging

    Regular price From $324.21 USD
    Regular price Sale price From $324.21 USD
    Unit price /  per 
  • CBK-09-915 NDS Catch Basin Kit w/ NDS 915 Galvanized Steel Grate

    NDS 9" Catch Basin Kit with NDS Bar Grate | Galvanized

    NDS 9" Catch Basin Kit with NDS Bar Grate | Galvanized

    Regular price From $146.47 USD
    Regular price Sale price From $146.47 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 
  • ULMA D100_0.6 Vinyl Ester FRP 488 Grate

    ULMA D100 Drain Channel w/488 Slotted Fiberglass Grate - Class C

    Sale

    ULMA D100 Drain Channel w/488 Slotted Fiberglass Grate - Class C

    Regular price From $478.41 USD
    Regular price $553.91 USD Sale price From $478.41 USD
    Unit price /  per 
    Sale
  • 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 D100-495

    ULMA D100 Drain Channel w/495 Gray Slotted Plastic Grate - Class A

    Sale

    ULMA D100 Drain Channel w/495 Gray Slotted Plastic Grate - Class A

    Regular price From $287.93 USD
    Regular price $309.00 USD Sale price From $287.93 USD
    Unit price /  per 
    Sale
  • IA-CARB-0312 Iron Age Carbochon

    Iron Age IA-CARB-0314 Class B Carbochon Cast Iron 3" x 14" Grate – RAW

    Sale

    Iron Age IA-CARB-0314 Class B Carbochon Cast Iron 3" x 14" Grate – RAW

    Regular price $88.66 USD
    Regular price $88.66 USD Sale price $88.66 USD
    Unit price /  per 
    Sale
  • 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 
  • DG0670 black HDPE Slotted POLYCAST grate

    POLYCAST DG0670 Class A Slotted DuraGuard HDPE 6"x24" (Nominal Dimensions) Grate - Black

    POLYCAST DG0670 Class A Slotted DuraGuard HDPE 6"x24" (Nominal Dimensions) Grate - Black

    Regular price $42.69 USD
    Regular price Sale price $42.69 USD
    Unit price /  per 
  • NDS® Dura Slope Kit with DS-664 HDPE Slotted Grate | Sand

    NDS® Dura Slope Kit with DS-664 HDPE Slotted Grate | Sand

    NDS® Dura Slope Kit with DS-664 HDPE Slotted Grate | Sand

    Regular price From $419.00 USD
    Regular price Sale price From $419.00 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 
  • NDS1224GR NDS 12" Green Wave Catch Basin Grate

    NDS 1224GR Class B ADA Compliant Wave HDPE 12" x 12" Grate - GREEN

    NDS 1224GR Class B ADA Compliant Wave HDPE 12" x 12" Grate - GREEN

    Regular price $90.92 USD
    Regular price Sale price $90.92 USD
    Unit price /  per 
  • Natural Minnione with Grey Mini Channel

    NDS 3" Gray Mini Channel Kit with Iron Age Minnione Grate - Natural

    NDS 3" Gray Mini Channel Kit with Iron Age Minnione Grate - Natural

    Regular price From $612.82 USD
    Regular price Sale price From $612.82 USD
    Unit price /  per 
  • NDS 900 009

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

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

    Regular price $49.51 USD
    Regular price Sale price $49.51 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 
  • Trench Drain Systems satin bronze cathedral grates for NDS mini channel

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

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

    Regular price $152.50 USD
    Regular price Sale price $152.50 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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