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  • Drainage Kits
    • Popular Manufacturers
      • TDS
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      • All Drainage Systems
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  • IA-locust-raw-3x12-fullview-TDSdrains

    Iron Age IA-LOC-0312 Class B Cast Iron Locust 3" x 12" Grate - RAW

    Iron Age IA-LOC-0312 Class B Cast Iron Locust 3" x 12" Grate - RAW

    Regular price $74.36 USD
    Regular price $74.36 USD Sale price $74.36 USD
    Unit price /  per 
  • IA-Dura-Slope-CI-grate-Locust-raw-6x24-TDSdrains

    Iron Age IA-LOC-0624 Class B Locust Cast Iron 6″ x 24″ Grate - RAW

    Iron Age IA-LOC-0624 Class B Locust Cast Iron 6″ x 24″ Grate - RAW

    Regular price $300.30 USD
    Regular price Sale price $300.30 USD
    Unit price /  per 
  • MCK-BA-TAR-BF NDS Mini Channel in Grey with TDS Bronze Age Tardis Grate in Ductile Iron

    NDS® 3" Gray Mini Channel Kit with TDS Bronze Age™ Tardis Grate - Ductile Iron

    NDS® 3" Gray Mini Channel Kit with TDS Bronze Age™ Tardis Grate - Ductile Iron

    Regular price From $177.29 USD
    Regular price Sale price From $177.29 USD
    Unit price /  per 
  • 5inch-cast-iron-grate-RiverRock-raw2

    Iron Age IA-RIV-0520 Class B ADA Compliant River Rock Cast Iron 122mm x 500mm Grate - RAW

    Iron Age IA-RIV-0520 Class B ADA Compliant River Rock Cast Iron 122mm x 500mm Grate - RAW

    Regular price $167.31 USD
    Regular price Sale price $167.31 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 $167.31 USD
    Regular price Sale price $167.31 USD
    Unit price /  per 
  • NDS 554CI Class B ADA Compliant Botanical Cast Iron 3" x 12" Grate - RAW

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

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

    Regular price $78.76 USD
    Regular price Sale price $78.76 USD
    Unit price /  per 
  • New Image Coming Soon

    ULMA D100 Drain Channel w/465 Slotted Ductile Iron Grate - Class B

    ULMA D100 Drain Channel w/465 Slotted Ductile Iron Grate - Class B

    Regular price From $309.92 USD
    Regular price Sale price From $309.92 USD
    Unit price /  per 
  • Iron Age Cast Iron Locust 6 inch diameter round grate BOOF

    Iron Age IA-LOC-6D-HP-BF Heel-Proof Locust Cast Iron 6.75″ Dia Grate – BoOF

    Iron Age IA-LOC-6D-HP-BF Heel-Proof Locust Cast Iron 6.75″ Dia Grate – BoOF

    Regular price $143.00 USD
    Regular price Sale price $143.00 USD
    Unit price /  per 
  • POLY600-GS-675HD-TDSdrains galv steel edge transverse slotted grate polymer concrete channel Polycast

    POLYCAST® 600 Vinyl Ester Series Kit w/DG0675HD Slotted Ductile Iron Grate & Stainless Edge

    POLYCAST® 600 Vinyl Ester Series Kit w/DG0675HD Slotted Ductile Iron Grate & Stainless Edge

    Regular price From $420.21 USD
    Regular price Sale price From $420.21 USD
    Unit price /  per 
  • DA0642B POLYCAST 600 Ductile Iron Locking Device-2in Bolt-Bar-Washer-1

    TDS-POLYCAST DA0642B Hold-Down Device for 600 Series Ductile Iron Grate

    TDS-POLYCAST DA0642B Hold-Down Device for 600 Series Ductile Iron Grate

    Regular price $7.64 USD
    Regular price Sale price $7.64 USD
    Unit price /  per 
  • Iron Age 4x24 Locust Spee-D Heel Proof cast iron grate

    Iron Age IA-LOC-0424-HP Class B Locust Cast Iron 4" x 24" Grate - Raw

    Iron Age IA-LOC-0424-HP Class B Locust Cast Iron 4" x 24" Grate - Raw

    Regular price $274.56 USD
    Regular price Sale price $274.56 USD
    Unit price /  per 
  • MV+200K-658 ULMA MULTIV with Glavanized Edge and 658 grate

    ULMA MV+200K w/ 658 HP Ductile Iron 9X20 Slotted Grate Class C

    ULMA MV+200K w/ 658 HP Ductile Iron 9X20 Slotted Grate Class C

    Regular price From $240.23 USD
    Regular price Sale price From $240.23 USD
    Unit price /  per 
  • POLY600-GS-675HD-TDSdrains galv steel edge transverse slotted grate polymer concrete channel Polycast

    POLYCAST 600 Series Kit w/ ADA DG0675HD Transverse Slot Ductile Iron Grate & Galvanized Edging

    POLYCAST 600 Series Kit w/ ADA DG0675HD Transverse Slot Ductile Iron Grate & Galvanized Edging

    Regular price From $269.84 USD
    Regular price Sale price From $269.84 USD
    Unit price /  per 
  • M100K-FNHX100KCCM-2 Ductile Iron grate Low Profile shallow polymer concrete galv edge ULMA channel

    ULMA M100K W/ Ductile Iron Slotted Grate (1/2M) Class C

    ULMA M100K W/ Ductile Iron Slotted Grate (1/2M) Class C

    Regular price From $290.16 USD
    Regular price Sale price From $290.16 USD
    Unit price /  per 
  • DP0750-AA-DG0641D

    POLYCAST®DP0750 Inline Catch Basin w/DG0641D Cast Iron Slotted Grate and Frame

    POLYCAST®DP0750 Inline Catch Basin w/DG0641D Cast Iron Slotted Grate and Frame

    Regular price $438.86 USD
    Regular price Sale price $438.86 USD
    Unit price /  per 
  • MCKS-BA-PED-D NDS Mini Channel in sand with TDS Bronze Age Pedreda Grate in Ductile Iron

    NDS 3" Sand Mini Channel Kit with TDS Bronze Age Pedreda Grate - Ductile Iron

    NDS 3" Sand Mini Channel Kit with TDS Bronze Age Pedreda Grate - Ductile Iron

    Regular price From $183.32 USD
    Regular price Sale price From $183.32 USD
    Unit price /  per 
  • Zurn Z886 Drainage Kit w/ DGE Ductile Iron Slotted Grate w/Frame

    Zurn Z886 Drainage Kit w/ DGE Ductile Iron Slotted Grate w/Frame

    Zurn Z886 Drainage Kit w/ DGE Ductile Iron Slotted Grate w/Frame

    Regular price From $1,491.15 USD
    Regular price Sale price From $1,491.15 USD
    Unit price /  per 
  • POLY500-AA-641D cast iron frame slotted ductile iron grate polymer concrete shallow channel Polycast

    POLYCAST 500 Series Kit with DG0641D Slotted Ductile Iron Grate and Frame

    POLYCAST 500 Series Kit with DG0641D Slotted Ductile Iron Grate and Frame

    Regular price From $590.69 USD
    Regular price Sale price From $590.69 USD
    Unit price /  per 
  • DA0542B Locking Device

    TDS-POLYCAST DA0542B Hold-Down Device for 500 Series Ductile Iron Grates

    TDS-POLYCAST DA0542B Hold-Down Device for 500 Series Ductile Iron Grates

    Regular price $15.71 USD
    Regular price Sale price $15.71 USD
    Unit price /  per 
  • New Image Coming Soon

    POLYCAST 600 Series Kit with DG0641D-G Slotted Ductile Iron-Galvanized Grate

    POLYCAST 600 Series Kit with DG0641D-G Slotted Ductile Iron-Galvanized Grate

    Regular price From $259.97 USD
    Regular price Sale price From $259.97 USD
    Unit price /  per 
  • MCK-BA-BARS-D NDS MIni Channel in Grey with TDS Bronze Age Grates in Ductile Iron

    NDS® 3" Gray Mini Channel Kit with TDS Bronze Age™ Bars Grate - Ductile Iron

    NDS® 3" Gray Mini Channel Kit with TDS Bronze Age™ Bars Grate - Ductile Iron

    Regular price From $177.29 USD
    Regular price Sale price From $177.29 USD
    Unit price /  per 
  • POLY700-AA-669-TDSdrains

    POLYCAST 700 Series Kit with DG0669 Stainless Bar Grate and Ductile Iron Frame

    POLYCAST 700 Series Kit with DG0669 Stainless Bar Grate and Ductile Iron Frame

    Regular price From $1,390.22 USD
    Regular price Sale price From $1,390.22 USD
    Unit price /  per 
  • SS600 stainless steel channel with DG0641D slotted cast iron grate

    SS600 Stainless Steel Drain Kit w/ DG0641D Slotted Ductile Iron Grate | Class D

    SS600 Stainless Steel Drain Kit w/ DG0641D Slotted Ductile Iron Grate | Class D

    Regular price From $1,359.84 USD
    Regular price Sale price From $1,359.84 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 
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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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