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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
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      • Fiberglass
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      • All Channel Materials
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      • TDS
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    • Popular Drainage Systems
      • Dura Slope
      • FP1200
      • Mini Channel
      • Polycast 600/700
      • Slim Channel
      • SS600
      • ULMA U100K(X)
      • All Drainage Systems
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  • IA-Loc-CB12-BF Iron Age Locust Catch Basin Grate 12x12" in Baked on Oil Finish

    Iron Age IA-LOC-CB12-BF Class B Locust Cast Iron 12" x 12" Grate - BoOF

    Iron Age IA-LOC-CB12-BF Class B Locust Cast Iron 12" x 12" Grate - BoOF

    Regular price $297.44 USD
    Regular price Sale price $297.44 USD
    Unit price /  per 
  • 6516 USF cast iron frame - 1 piece

    Heavy Duty Gray Iron USF 6516 Frame Rail 1.5" x 48"

    Heavy Duty Gray Iron USF 6516 Frame Rail 1.5" x 48"

    Regular price $116.06 USD
    Regular price Sale price $116.06 USD
    Unit price /  per 
  • NDS 554CI Cast Iron BOOF 3x12 botanical grate

    NDS 554CI-BF Class B ADA Compliant Botanical Cast Iron 3" x 12" Grate - BoOF

    NDS 554CI-BF Class B ADA Compliant Botanical Cast Iron 3" x 12" Grate - BoOF

    Regular price $93.16 USD
    Regular price Sale price $93.16 USD
    Unit price /  per 
  • FP1200-FG1242 Slotted Ductile Iron Grate - Class E

    TDS DG1242 Class E Slotted Ductile Iron 14" x 24" x 1.5" Grate

    TDS DG1242 Class E Slotted Ductile Iron 14" x 24" x 1.5" Grate

    Regular price $294.38 USD
    Regular price Sale price $294.38 USD
    Unit price /  per 
  • FP1200-FG1241-TDS-1 FP Series ductile iron grate heavy duty

    TDS DG1241 Class C Slotted Ductile Iron 14" x 24" x 1.5"Grate

    TDS DG1241 Class C Slotted Ductile Iron 14" x 24" x 1.5"Grate

    Regular price $288.95 USD
    Regular price Sale price $288.95 USD
    Unit price /  per 
  • NDS 885-12x20-CI-grate

    NDS 885 Class C Slotted Cast Iron 12" x 20" Grate

    NDS 885 Class C Slotted Cast Iron 12" x 20" Grate

    Regular price $357.55 USD
    Regular price Sale price $357.55 USD
    Unit price /  per 
  • DG0641D POLYCAST ductile iron slotted grate Class D

    POLYCAST DG0641D Class D Slotted Ductile Iron Grate 6" x 24" (Nominal)

    POLYCAST DG0641D Class D Slotted Ductile Iron Grate 6" x 24" (Nominal)

    Regular price $49.31 USD
    Regular price Sale price $49.31 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 $100.10 USD
    Regular price Sale price $100.10 USD
    Unit price /  per 
  • DS-609-Deco-Slotted-CI-grate dura slope NDS cast iron grate

    NDS DS-609 Class C Slotted Ductile Iron 6" x 24" Grate - RAW

    NDS DS-609 Class C Slotted Ductile Iron 6" x 24" Grate - RAW

    Regular price $127.08 USD
    Regular price Sale price $127.08 USD
    Unit price /  per 
  • GF-21424

    GF 21424 Heavy-Duty Gray Iron Slotted 14" x 24" x 2" Grate | General Foundry

    GF 21424 Heavy-Duty Gray Iron Slotted 14" x 24" x 2" Grate | General Foundry

    Regular price $198.99 USD
    Regular price Sale price $198.99 USD
    Unit price /  per 
  • ia-2x18-ci-grate-regular-joe- boof Iron Age 2"x18" Cast Iron Grate in Regular Joe with Baked on Oil FInish

    Iron Age IA-JOE-0218-HP-BF Class B HP Regular Joe Ductile Iron 2"x18" Grate – BoOF

    Iron Age IA-JOE-0218-HP-BF Class B HP Regular Joe Ductile Iron 2"x18" Grate – BoOF

    Regular price $148.72 USD
    Regular price Sale price $148.72 USD
    Unit price /  per 
  • NDS 1813 Black Slotted

    NDS 1813 Class C Slotted Cast Iron 18" x 18" Grate

    NDS 1813 Class C Slotted Cast Iron 18" x 18" Grate

    Regular price $488.85 USD
    Regular price Sale price $488.85 USD
    Unit price /  per 
  • EJ6953M2-6954M2 Rust-colored heavy-duty metal drain cover with 'TDS' branding on a white background

    EJ 6954M2 Heavy Duty Gray Iron 14" x 24" x 1.5" Grate

    EJ 6954M2 Heavy Duty Gray Iron 14" x 24" x 1.5" Grate

    Regular price $381.70 USD
    Regular price Sale price $381.70 USD
    Unit price /  per 
  • FP1200-FG1246-1-Ductile-Iron-Grate-Class-F

    TDS DG1246 Class F Slotted Ductile Iron 14" x 24" x 1.5" Grate

    TDS DG1246 Class F Slotted Ductile Iron 14" x 24" x 1.5" Grate

    Regular price $316.17 USD
    Regular price Sale price $316.17 USD
    Unit price /  per 
  • DG2441D-Catch-Basin-Grate-TDS

    POLYCAST DG0653D Class F Slotted Ductile Iron 24" X 24" Catch Basin Grate

    POLYCAST DG0653D Class F Slotted Ductile Iron 24" X 24" Catch Basin Grate

    Regular price $919.14 USD
    Regular price Sale price $919.14 USD
    Unit price /  per 
  • DG0675HD-polycast-duraguard-longit-slotted-grate-TDSdrains

    POLYCAST DG0675HD Class D HP ADA Transverse Slotted Ductile Iron 5.19" x 24" Grate

    POLYCAST DG0675HD Class D HP ADA Transverse Slotted Ductile Iron 5.19" x 24" Grate

    Regular price $60.35 USD
    Regular price Sale price $60.35 USD
    Unit price /  per 
  • Polycast 750 Catch Basin with Cast iron Frame and Iron Transverse Slotted DG0675HD grate

    POLYCAST®750 Inline Catch Basin w/DG0675HD Cast Iron Transverse Slotted Grate and Frame

    POLYCAST®750 Inline Catch Basin w/DG0675HD Cast Iron Transverse Slotted Grate and Frame

    Regular price $494.66 USD
    Regular price Sale price $494.66 USD
    Unit price /  per 
  • IA-JOE-0520 Iron Age Regular Joe 5x20" raw cast iron grate

    Iron Age IA-JOE-0520 Class B Regular Joe Cast Iron 122mm x 500mm Grate - RAW

    Iron Age IA-JOE-0520 Class B Regular Joe Cast Iron 122mm x 500mm Grate - RAW

    Regular price $167.31 USD
    Regular price Sale price $167.31 USD
    Unit price /  per 
  • NDS-Dura-XX-LocB-DK Iron Age boof

    NDS Dura Slope Kit with Iron Age Locust 6" Grate - BoOF

    NDS Dura Slope Kit with Iron Age Locust 6" Grate - BoOF

    Regular price From $1,012.05 USD
    Regular price Sale price From $1,012.05 USD
    Unit price /  per 
  • DP0751-DG0643 Polycast 751 Catch Basin with Ductile Iron Grates DG0643

    POLYCAST® DP0751 Catch Basin w/DG0643 Gray Iron Slotted Grate and Frame

    POLYCAST® DP0751 Catch Basin w/DG0643 Gray Iron Slotted Grate and Frame

    Regular price $1,732.90 USD
    Regular price Sale price $1,732.90 USD
    Unit price /  per 
  • IA-Dura-Slope-CI-grate-Interlaken-BooF-6x24-TDSdrains

    Iron Age IA-INTER-0624-BF Class B Interlaken Cast Iron 6″ x 24″ Grate - BoOF

    Iron Age IA-INTER-0624-BF Class B Interlaken Cast Iron 6″ x 24″ Grate - BoOF

    Regular price $363.22 USD
    Regular price Sale price $363.22 USD
    Unit price /  per 
  • DG3043D 3000 Series Black Transverse Slotted ADA Grate Class D400

    DG3043D Class D ADA Compliant Transverse Slotted Ductile Iron 8"x24"x1.5" Grate

    DG3043D Class D ADA Compliant Transverse Slotted Ductile Iron 8"x24"x1.5" Grate

    Regular price $72.09 USD
    Regular price Sale price $72.09 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 $100.10 USD
    Regular price Sale price $100.10 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 $50.54 USD
    Regular price Sale price $50.54 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 HYDROPLUS Mini w/ BARS Ductile Iron Grate Class C

    ULMA HYDROPLUS Mini w/ BARS Ductile Iron Grate Class C

    $237.16 $183.00
  • ULMA HYDROPLUS Mini w/ FERN Ductile Iron Grate Class C

    ULMA HYDROPLUS Mini w/ FERN Ductile Iron Grate Class C

    $237.16 $183.00
  • ULMA HYDROPLUS Mini w/ CATHEDRAL Ductile Iron Grate Class C

    ULMA HYDROPLUS Mini w/ CATHEDRAL Ductile Iron Grate Class C

    $237.16 $183.00
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