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    • Popular Manufacturers
      • TDS
      • NDS
      • POLYCAST®
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      • All Manufacturers
    • Popular Drainage Systems
      • Dura Slope
      • Mini Channel
      • Polycast 600/700
      • Slim Channel
      • SS600
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      • All Drainage Systems
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      • All Load Classes
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    • Popular Manufacturers
      • TDS
      • Bronze Age
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      • Polylok
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      • All Manufacturers
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      • 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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  • ULMA 414 Class C Reinforced Perforated w/Tread Galvanized Steel 122mm x 1M Grate

    ULMA 414 Class C Reinforced Perforated w/Tread Galvanized Steel 122mm x 1M Grate

    Sale

    ULMA 414 Class C Reinforced Perforated w/Tread Galvanized Steel 122mm x 1M Grate

    Regular price $133.25 USD
    Regular price $119.92 USD Sale price $133.25 USD
    Unit price /  per 
    Sale
  • ULMA HYDROPLUS Mini with IA-JANIS-0520 Iron Age Janis Grate Raw

    ULMA HYDROPLUS Mini w/ Iron Age 5" Janis Raw Cast Iron Grate | Class B

    Sale

    ULMA HYDROPLUS Mini w/ Iron Age 5" Janis Raw Cast Iron Grate | Class B

    Regular price From $402.60 USD
    Regular price $411.08 USD Sale price From $402.60 USD
    Unit price /  per 
    Sale
  • ULMA HYDRO MINI PLUS with IA-BAY-0520-HP Raw

    ULMA HYDROPLUS Mini IA-BAY-0520-HP Iron Age Mission Bay HP Raw Cast Iron Grate | Class B

    Sale

    ULMA HYDROPLUS Mini IA-BAY-0520-HP Iron Age Mission Bay HP Raw Cast Iron Grate | Class B

    Regular price From $402.60 USD
    Regular price $411.08 USD Sale price From $402.60 USD
    Unit price /  per 
    Sale
  • MCK-IA-LOC-BF

    NDS 3" Gray Mini Channel Kit with Iron Age Locust Grate - Baked on Oil Finish

    NDS 3" Gray Mini Channel Kit with Iron Age Locust Grate - Baked on Oil Finish

    Regular price From $400.64 USD
    Regular price Sale price From $400.64 USD
    Unit price /  per 
  • New Image Coming Soon

    Zurn ZF806 Flo-Thru® Drain with P6-HPP Black HDPE Grate - HD Z Frame

    Zurn ZF806 Flo-Thru® Drain with P6-HPP Black HDPE Grate - HD Z Frame

    Regular price From $2,383.80 USD
    Regular price Sale price From $2,383.80 USD
    Unit price /  per 
  • ULMA HYDRO PLUS with IA-JOE-0520-HP-BF Iron Age Regular Joe Heel Proof BoOF Grate_Class B

    ULMA HYDROPLUS with Iron Age IA-JOE-0520-HP-BF Regular Joe Heel Proof - BoOF

    Sale

    ULMA HYDROPLUS with Iron Age IA-JOE-0520-HP-BF Regular Joe Heel Proof - BoOF

    Regular price From $551.97 USD
    Regular price $573.86 USD Sale price From $551.97 USD
    Unit price /  per 
    Sale
  • ULMA Hydro Mini Plus H80 with IA-IA-JOE-0520-HP Iron Age Regular Joe Heel Proof Grate Class B

    ULMA HYDROPLUS Mini w/ Iron Age Regular Joe Raw Heel Proof Grate | Class B

    Sale

    ULMA HYDROPLUS Mini w/ Iron Age Regular Joe Raw Heel Proof Grate | Class B

    Regular price From $402.60 USD
    Regular price $411.08 USD Sale price From $402.60 USD
    Unit price /  per 
    Sale
  • D100-BA-BARS-0520

    ULMA D100 w/Bronze Age™ BARS Ductile Iron Grate - RAW

    Sale

    ULMA D100 w/Bronze Age™ BARS Ductile Iron Grate - RAW

    Regular price From $414.64 USD
    Regular price $421.92 USD Sale price From $414.64 USD
    Unit price /  per 
    Sale
  • M100K-GN100KCC Reinforced Galvanized Steel grate polymer concrete galv edge ULMA channel

    ULMA M100K Rein. Galv. Steel Slotted Grate (1M)

    Sale

    ULMA M100K Rein. Galv. Steel Slotted Grate (1M)

    Regular price From $232.52 USD
    Regular price $288.96 USD Sale price From $232.52 USD
    Unit price /  per 
    Sale
  • ULMA Hydro Mini Plus H80 with IA-IA-JOE-0520 Iron Age Regular Joe Grate Class B

    ULMA HYDROPLUS Mini w/ Iron Age Regular Joe Raw Cast Iron Grate | Class B

    Sale

    ULMA HYDROPLUS Mini w/ Iron Age Regular Joe Raw Cast Iron Grate | Class B

    Regular price From $396.55 USD
    Regular price $403.30 USD Sale price From $396.55 USD
    Unit price /  per 
    Sale
  • ULMA HYDRO PLUS with IA-JOE-0520-HP Iron Age Regular Joe Heel Proof Grate Class BULMA HYDRO PLUS with IA-JOE-0520-HP Iron Age Regular Joe Heel Proof Grate Class B

    ULMA HYDROPLUS with Iron Age IA-JOE-0520-HP Regular Joe Heel Proof Raw Cast Iron Grate Class B

    Sale

    ULMA HYDROPLUS with Iron Age IA-JOE-0520-HP Regular Joe Heel Proof Raw Cast Iron Grate Class B

    Regular price From $434.71 USD
    Regular price $456.60 USD Sale price From $434.71 USD
    Unit price /  per 
    Sale
  • HYDROPLUS with Iron Age Minnione Raw Cast Iron

    ULMA HYDROPLUS w/ CLass B Iron Age MA5-20I21 / IA-MIN-0520 Minnione Raw Cast Iron Grate

    Sale

    ULMA HYDROPLUS w/ CLass B Iron Age MA5-20I21 / IA-MIN-0520 Minnione Raw Cast Iron Grate

    Regular price From $441.85 USD
    Regular price $465.78 USD Sale price From $441.85 USD
    Unit price /  per 
    Sale
  • ULMA HYDROPLUS with Iron Age Janis Raw Cast Iron Grate

    ULMA HYDROPLUS with Iron Age JA5-20I21 / IA-JANIS-0520 Janis Raw Cast Iron Grate Class B

    Sale

    ULMA HYDROPLUS with Iron Age JA5-20I21 / IA-JANIS-0520 Janis Raw Cast Iron Grate Class B

    Regular price From $441.85 USD
    Regular price $465.78 USD Sale price From $441.85 USD
    Unit price /  per 
    Sale
  • Hydro Plus with Interlaken Raw Grate IA-INTER-0520

    ULMA HYDROPLUS with Iron Age IA-INTER-0520 Interlaken Raw Cast Iron Grate Class B

    Sale

    ULMA HYDROPLUS with Iron Age IA-INTER-0520 Interlaken Raw Cast Iron Grate Class B

    Regular price From $434.71 USD
    Regular price $456.60 USD Sale price From $434.71 USD
    Unit price /  per 
    Sale
  • Hydro Mini Plus with 488 Vinylester FRP .6 on center Grate Class C_1 Meter

    ULMA HYDROPLUS Mini with 488 Fiberglass bar grate - Load Class C

    Sale

    ULMA HYDROPLUS Mini with 488 Fiberglass bar grate - Load Class C

    Regular price From $307.15 USD
    Regular price $388.05 USD Sale price From $307.15 USD
    Unit price /  per 
    Sale
  • Hydro Plus with Iron Age Locust Cast Iron Grate IA-LOC-0520 Class B

    ULMA HYDROPLUS w/ IA-LOC-0520 / IA-LOC-0520 Iron Age Locust Cast Iron Raw Grate Class B

    Sale

    ULMA HYDROPLUS w/ IA-LOC-0520 / IA-LOC-0520 Iron Age Locust Cast Iron Raw Grate Class B

    Regular price From $441.85 USD
    Regular price $465.78 USD Sale price From $441.85 USD
    Unit price /  per 
    Sale
  • ULMA HYDROPLUS w/ PED Ductile Iron Grate - Class C

    ULMA HYDROPLUS w/ PED Ductile Iron Grate - Class C

    Sale

    ULMA HYDROPLUS w/ PED Ductile Iron Grate - Class C

    Regular price From $267.93 USD
    Regular price $291.86 USD Sale price From $267.93 USD
    Unit price /  per 
    Sale
  • Hydro Plus with 402 Galvanized Mesh Class B

    ULMA HYDROPLUS with 402 / GEX100KCB Galvanized Mesh Grate Class B

    Sale

    ULMA HYDROPLUS with 402 / GEX100KCB Galvanized Mesh Grate Class B

    Regular price From $163.53 USD
    Regular price $207.63 USD Sale price From $163.53 USD
    Unit price /  per 
    Sale
  • ULMA M100V w/Bronze Age™ FERN Ductile Iron Heel-Proof Grate - RAW

    ULMA M100V w/Bronze Age™ FERN Ductile Iron Heel-Proof Grate - RAW

    Sale

    ULMA M100V w/Bronze Age™ FERN Ductile Iron Heel-Proof Grate - RAW

    Regular price From $310.06 USD
    Regular price $338.65 USD Sale price From $310.06 USD
    Unit price /  per 
    Sale
  • New Image Coming Soon

    Zurn ZF806 Flo-Thru® Drain with P6-GHPD Galvanized Ductile Iron Grate - HD Z Frame

    Zurn ZF806 Flo-Thru® Drain with P6-GHPD Galvanized Ductile Iron Grate - HD Z Frame

    Regular price From $2,999.80 USD
    Regular price Sale price From $2,999.80 USD
    Unit price /  per 
  • ULMA U100K Drain Channel kit w/Bronze Age™ CATHEDRAL Grate-RAW

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

    Sale

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

    Regular price From $155.28 USD
    Regular price $174.64 USD Sale price From $155.28 USD
    Unit price /  per 
    Sale
  • ULMA M100V w/Bronze Age™ BARS Ductile Iron Heel-Proof Grate - RAW

    ULMA M100V w/Bronze Age™ BARS Ductile Iron Heel-Proof Grate - RAW

    Sale

    ULMA M100V w/Bronze Age™ BARS Ductile Iron Heel-Proof Grate - RAW

    Regular price From $310.06 USD
    Regular price $338.65 USD Sale price From $310.06 USD
    Unit price /  per 
    Sale
  • ULMA HYDROPLUS 90 Degree

    ULMA HYDROPLUS 90 Degree Corner Kit HYDRO-90

    Sale

    ULMA HYDROPLUS 90 Degree Corner Kit HYDRO-90

    Regular price $161.38 USD
    Regular price $145.24 USD Sale price $161.38 USD
    Unit price /  per 
    Sale
  • Iron Age BoOF Acanthus Grate in Sand Mini Channel MCKS-IA-Aca-BF

    NDS 3" Sand Mini Channel Kit with Iron Age Acanthus Grate - Baked on Oil Finish

    NDS 3" Sand Mini Channel Kit with Iron Age Acanthus Grate - Baked on Oil Finish

    Regular price From $833.17 USD
    Regular price Sale price From $833.17 USD
    Unit price /  per 
  • BA-TAR-0312-BF TDS Bronze Age Tardis grate in BoOF

    TDS® 3" Sand Max Mini w/ Bronze Age™ Tardis Grate - BoOF & Oil Rubbed Bronze Edge

    TDS® 3" Sand Max Mini w/ Bronze Age™ Tardis Grate - BoOF & Oil Rubbed Bronze Edge

    Regular price From $716.46 USD
    Regular price Sale price From $716.46 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
Shop All

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shop@trenchdrain.com

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