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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
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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
      • 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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      • Ductile/Cast Iron
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Products Blogs
  • IA-6in-round-Interlaken-BF-DK

    Iron Age IA-INTER-6D-HP-BF Class B Interlaken 6" Dia Grate – BoOF

    Iron Age IA-INTER-6D-HP-BF Class B Interlaken 6" Dia Grate – BoOF

    Regular price $150.15 USD
    Regular price Sale price $150.15 USD
    Unit price /  per 
  • NDS 1215 Galvanized steel bar grate

    NDS 1215 Class C HD Bar Galvanized 12" x 12" Grate

    NDS 1215 Class C HD Bar Galvanized 12" x 12" Grate

    Regular price $125.48 USD
    Regular price Sale price $125.48 USD
    Unit price /  per 
  • NDS1225 sump box 12x12

    NDS 1200 Sump Box 12" X 12" - NO Grate

    NDS 1200 Sump Box 12" X 12" - NO Grate

    Regular price $80.26 USD
    Regular price Sale price $80.26 USD
    Unit price /  per 
  • Iron Age Cast Iron Locust 6 inch diameter round grate Raw finish

    Iron Age IA-LOC-6D-HP Class A ADA Compliant Locust Cast Iron 6.75″ Dia Grate – RAW

    Iron Age IA-LOC-6D-HP Class A ADA Compliant Locust Cast Iron 6.75″ Dia Grate – RAW

    Regular price $104.39 USD
    Regular price Sale price $104.39 USD
    Unit price /  per 
  • IronAge-bullseye-12x12-cb-grate-TDSdrains raw cast iron deco

    Iron Age IA-BULL-CB12-HP Class B Heel-Proof Bullseye Cast Iron 12" x 12" Grate - Natural

    Iron Age IA-BULL-CB12-HP Class B Heel-Proof Bullseye Cast Iron 12" x 12" Grate - Natural

    Regular price $231.66 USD
    Regular price Sale price $231.66 USD
    Unit price /  per 
  • DG0700AC POLYCAST Cast Iron Frame with End Cap

    DG0700AC POLYCAST HARDNOSE 700 Series Cast Iron Frame w/End Cap

    DG0700AC POLYCAST HARDNOSE 700 Series Cast Iron Frame w/End Cap

    Regular price $75.58 USD
    Regular price Sale price $75.58 USD
    Unit price /  per 
  • Iron Age 6 inch diameter Bullseye raw cast iron grate

    Iron Age IA-BULL-6D-HP Class A ADA Heel-Proof Bullseye Cast Iron 6" Dia Grate – Natural

    Iron Age IA-BULL-6D-HP Class A ADA Heel-Proof Bullseye Cast Iron 6" Dia Grate – Natural

    Regular price $104.39 USD
    Regular price Sale price $104.39 USD
    Unit price /  per 
  • Bullseye BoOF 6 inch diameter Iron Age deco drain grate

    Iron Age IA-BULL-6D-HP-BF Class A ADA Heel-Proof Bullseye Cast Iron 6" Dia Grate – BoOF

    Iron Age IA-BULL-6D-HP-BF Class A ADA Heel-Proof Bullseye Cast Iron 6" Dia Grate – BoOF

    Regular price $150.15 USD
    Regular price Sale price $150.15 USD
    Unit price /  per 
  • Ulma LD-100X-3CB locking device drawing

    LD100X-3CB Locking Device for ULMA Grates

    Sale

    LD100X-3CB Locking Device for ULMA Grates

    Regular price $10.57 USD
    Regular price $13.59 USD Sale price $10.57 USD
    Unit price /  per 
    Sale
  • Core Drilling

    Core Drill - Polymer Concrete Channels

    Core Drill - Polymer Concrete Channels

    Regular price $50.00 USD
    Regular price Sale price $50.00 USD
    Unit price /  per 
  • LDX100-5CB ULMA Locking Device

    LD100X-5CB Locking Device for ULMA Grates

    Sale

    LD100X-5CB Locking Device for ULMA Grates

    Regular price $35.77 USD
    Regular price $45.99 USD Sale price $35.77 USD
    Unit price /  per 
    Sale
  • Polycast500-DP0500C-end-cap-TDS

    TDS-POLYCAST DP0500C End Cap

    TDS-POLYCAST DP0500C End Cap

    Regular price $24.17 USD
    Regular price Sale price $24.17 USD
    Unit price /  per 
  • NDS620-pop-up-emitter

    NDS 620 Pop-Up Emitter for 6" SDR pipe

    NDS 620 Pop-Up Emitter for 6" SDR pipe

    Regular price $40.14 USD
    Regular price Sale price $40.14 USD
    Unit price /  per 
  • Vinylester-489-FRP-0.6-in-on-center-0.5M-length-510x510

    TDS 489 Vinyl-Ester Fiberglass Bar 122mm x 0.5M Bar Grate - 0.6" on center - Class C

    Sale

    TDS 489 Vinyl-Ester Fiberglass Bar 122mm x 0.5M Bar Grate - 0.6" on center - Class C

    Regular price $96.99 USD
    Regular price $124.70 USD Sale price $96.99 USD
    Unit price /  per 
    Sale
  • NDS420-pop-up-emitter

    NDS 420 Pop-Up Emitter for 3" & 4" SDR pipe

    NDS 420 Pop-Up Emitter for 3" & 4" SDR pipe

    Regular price $25.09 USD
    Regular price Sale price $25.09 USD
    Unit price /  per 
  • NDS16 3" Round Grate in Green Polypropylene

    NDS® 16 Round 3" Grate for Drain Pipe

    NDS® 16 Round 3" Grate for Drain Pipe

    Regular price $5.26 USD
    Regular price Sale price $5.26 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 $70.40 USD
    Regular price Sale price $70.40 USD
    Unit price /  per 
  • 494 PNH100KCAM black plastic slotted ulma grate

    ULMA 494 / PNH100KCAM Class A ADA/HP Slotted Polypropylene 123mm x 498mm Grate | Black

    Sale

    ULMA 494 / PNH100KCAM Class A ADA/HP Slotted Polypropylene 123mm x 498mm Grate | Black

    Regular price $24.93 USD
    Regular price $32.05 USD Sale price $24.93 USD
    Unit price /  per 
    Sale
  • Vinylester-487-FRP-0.9-in-on-center-0.5M-length-510x510

    TDS 487 Class B Vinyl-Ester Fiberglass Bar 122mm x 0.5M Bar Grate - 0.9" centers

    Sale

    TDS 487 Class B Vinyl-Ester Fiberglass Bar 122mm x 0.5M Bar Grate - 0.9" centers

    Regular price $74.43 USD
    Regular price $95.70 USD Sale price $74.43 USD
    Unit price /  per 
    Sale
  • IA-LOC-0520-BF Iron Age Locust 5 x 20 cast iron grate

    Iron Age IA-LOC-0520-BF Class B Locust Cast Iron 122mm x 500mm Grate - BoOF

    Iron Age IA-LOC-0520-BF Class B Locust Cast Iron 122mm x 500mm Grate - BoOF

    Regular price $233.09 USD
    Regular price Sale price $233.09 USD
    Unit price /  per 
  • IA-BAY-0520-HP-BF Iron Age 5x20" Bay Pattern Heel Proof with Baked on Oil Finish

    Iron Age IA-BAY-0520-HP-BF Class B HP Mission Bay Cast Iron 5x20 (Nominal) Grate - BoOF

    Iron Age IA-BAY-0520-HP-BF Class B HP Mission Bay Cast Iron 5x20 (Nominal) Grate - BoOF

    Regular price $233.09 USD
    Regular price Sale price $233.09 USD
    Unit price /  per 
  • 460 FNX100KCCM ULMA ductile iron grate

    ULMA 460 / FNX100KCCM Slotted Ductile Iron 124mm x 498mm Grate Class C

    Sale

    ULMA 460 / FNX100KCCM Slotted Ductile Iron 124mm x 498mm Grate Class C

    Regular price $28.69 USD
    Regular price $36.89 USD Sale price $28.69 USD
    Unit price /  per 
    Sale
  • 5inch-cast-iron-grate-Minione-boof

    Iron Age IA-MIN-0520-BF Class B Minnione Cast Iron 122mm x 500mm Grate - BoOF

    Iron Age IA-MIN-0520-BF Class B Minnione Cast Iron 122mm x 500mm Grate - BoOF

    Regular price $233.09 USD
    Regular price Sale price $233.09 USD
    Unit price /  per 
  • 5x20 Iron Age Cast-Iron Grate Locust Grate Raw Finish

    Iron Age IA-LOC-0520 Class B Locust Cast Iron 122mm x 500mm Grate - RAW

    Iron Age IA-LOC-0520 Class B Locust Cast Iron 122mm x 500mm Grate - RAW

    Regular price $174.46 USD
    Regular price Sale price $174.46 USD
    Unit price /  per 
  • NDS-Dura-XX-664-TDSdrains sand slotted

    NDS DS-664 Class B ADA Compliant Slotted Polyolefin 6" x 24" Grate - SAND

    NDS DS-664 Class B ADA Compliant Slotted Polyolefin 6" x 24" Grate - SAND

    Regular price $66.70 USD
    Regular price Sale price $66.70 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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