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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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      • 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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      • Bronze
      • Ductile/Cast Iron
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      • Galvanized Steel
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  • ULMA 402_403 GEX100KCB-Mesh Galvanized grate

    ULMA 402 / GEX100KCB Mesh Galvanized Grate 1M Class B

    ULMA 402 / GEX100KCB Mesh Galvanized Grate 1M Class B

    Regular price $100.67 USD
    Regular price Sale price $100.67 USD
    Unit price /  per 
  • BA-LUNA-0312-B TDS Luna Brushed Bronze Grate

    Bronze Age BA-LUNA-0312-B Luna Bronze Brushed 3" x 12" Grate

    Bronze Age BA-LUNA-0312-B Luna Bronze Brushed 3" x 12" Grate

    Regular price $152.50 USD
    Regular price Sale price $152.50 USD
    Unit price /  per 
  • TDS-4in-bronze-natural-cathedral-TDSdrains

    Bronze Age BA-CATH-4D Class A Cathedral Bronze Natural Finish 4" Dia. Grate

    Bronze Age BA-CATH-4D Class A Cathedral Bronze Natural Finish 4" Dia. Grate

    Regular price $136.00 USD
    Regular price Sale price $136.00 USD
    Unit price /  per 
  • U100K00M-Interlaken Iron age deco cast iron raw grate polymer concrete galv edge ULMA channel

    ULMA U100K Drainage Kit with Iron Age Interlaken Grate | Natural

    ULMA U100K Drainage Kit with Iron Age Interlaken Grate | Natural

    Regular price From $644.68 USD
    Regular price Sale price From $644.68 USD
    Unit price /  per 
  • Zurn P4-BZ Decorative Slotted Cast Bronze 4" x 20" Grate - Class A

    Zurn P4-BZ Decorative Slotted Cast Bronze 4" x 20" Grate - Class A

    Zurn P4-BZ Decorative Slotted Cast Bronze 4" x 20" Grate - Class A

    Regular price $748.80 USD
    Regular price Sale price $748.80 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

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

    Regular price $32.05 USD
    Regular price Sale price $32.05 USD
    Unit price /  per 
  • BA-PED-0312 Bronze Brushed Mini Channel Pedreda Grate with logo

    Bronze Age BA-PED-0312-B Class A Pedreda Bronze Brushed Finish 3" X 12" Grate

    Bronze Age BA-PED-0312-B Class A Pedreda Bronze Brushed Finish 3" X 12" Grate

    Regular price $152.50 USD
    Regular price Sale price $152.50 USD
    Unit price /  per 
  • BA-PED-0312 Bronze Natural Mini Channel Pedreda Grate

    Bronze Age BA-PED-0312 Class A Pedreda Bronze Natural Finish 3" x 12" Grate

    Bronze Age BA-PED-0312 Class A Pedreda Bronze Natural Finish 3" x 12" Grate

    Regular price $136.00 USD
    Regular price Sale price $136.00 USD
    Unit price /  per 
  • U100K-Janis cast iron raw ironage grate polymer concrete ulma channel

    ULMA U100K Drainage Kit with Iron Age Janis Grate | Natural

    ULMA U100K Drainage Kit with Iron Age Janis Grate | Natural

    Regular price From $644.68 USD
    Regular price Sale price From $644.68 USD
    Unit price /  per 
  • U100KX-438 ULMA Channel with Reinforced 438 Wedge Wire Grate

    ULMA U100KX Kit w/ 438 Reinforced Stainless Steel Wedge Wire Grate (316L)

    ULMA U100KX Kit w/ 438 Reinforced Stainless Steel Wedge Wire Grate (316L)

    Regular price From $517.77 USD
    Regular price Sale price From $517.77 USD
    Unit price /  per 
  • Trench Drain Systems satin bronze raindrop grates for NDS mini channel

    Bronze Age BA-RAIN-0312-B-DDCT Rain Drop Bronze Brushed 3" x 12" Grate | Class A

    Bronze Age BA-RAIN-0312-B-DDCT Rain Drop Bronze Brushed 3" x 12" Grate | Class A

    Regular price $52.50 USD
    Regular price Sale price $52.50 USD
    Unit price /  per 
  • ULMA U100KX Drain Channel kit w/Bronze Age™ CATHEDRAL Grate-RAW

    ULMA U100KX Drain Channel kit w/Bronze Age™ CATHEDRAL Grate-RAW

    ULMA U100KX Drain Channel kit w/Bronze Age™ CATHEDRAL Grate-RAW

    Regular price From $240.15 USD
    Regular price Sale price From $240.15 USD
    Unit price /  per 
  • TDS 3" Bronze Natural Mini Channel Grate

    Bronze Age BA-RAIN-0312 Class A Rain Drop Bronze Natural Finish 3" x 12" Grate

    Bronze Age BA-RAIN-0312 Class A Rain Drop Bronze Natural Finish 3" x 12" Grate

    Regular price $136.00 USD
    Regular price Sale price $136.00 USD
    Unit price /  per 
  • Trench Drain Systems natural bronze cathedral grates for NDS mini channel

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

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

    Regular price $136.00 USD
    Regular price Sale price $136.00 USD
    Unit price /  per 
  • BA-STAR-0312 Stars Bronze Age - Natural Bronze Grate

    Bronze Age BA-STAR-0312 Stars Bronze Natural 3" x 12" Grate

    Bronze Age BA-STAR-0312 Stars Bronze Natural 3" x 12" Grate

    Regular price $136.00 USD
    Regular price Sale price $136.00 USD
    Unit price /  per 
  • TDS-4in-bronze-satin-cathedral-TDSdrains

    Bronze Age BA-CATH-4D-B Class A Cathedral Bronze Brushed Finish 4" Dia. Grate

    Bronze Age BA-CATH-4D-B Class A Cathedral Bronze Brushed Finish 4" Dia. Grate

    Regular price $152.50 USD
    Regular price Sale price $152.50 USD
    Unit price /  per 
  • TDS-mini-channel-bronze-raindrop-brushedSatin

    Bronze Age BA-RAIN-0312-B Class A Rain Drop Bronze Brushed Finish 3" x 12" Grate

    Bronze Age BA-RAIN-0312-B Class A Rain Drop Bronze Brushed Finish 3" x 12" Grate

    Regular price $152.50 USD
    Regular price Sale price $152.50 USD
    Unit price /  per 
  • New Image Coming Soon

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

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

    Regular price From $338.65 USD
    Regular price Sale price From $338.65 USD
    Unit price /  per 
  • TDS-BARS-0312-B Brushed Bronze Age Grates Transverse Slotted Grate

    Bronze Age BA-BARS-0312-B Bars Bronze Brushed 3" x 12" Grate

    Bronze Age BA-BARS-0312-B Bars Bronze Brushed 3" x 12" Grate

    Regular price $152.50 USD
    Regular price Sale price $152.50 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 
  • TDS-BARS-0312 Natural Bronze Age Grates Transverse Slotted Grate

    Bronze Age BA-BARS-0312 Bars Bronze Natural 3" x 12" Grate

    Bronze Age BA-BARS-0312 Bars Bronze Natural 3" x 12" Grate

    Regular price $136.00 USD
    Regular price Sale price $136.00 USD
    Unit price /  per 
  • Bronze Age Grates - Tardis - Brushed Bronze

    Bronze Age BA-TAR-0312-B Class A Tardis Bronze Brushed Finish 3" x 12" Grate

    Bronze Age BA-TAR-0312-B Class A Tardis Bronze Brushed Finish 3" x 12" Grate

    Regular price $152.50 USD
    Regular price Sale price $152.50 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 
  • MMS-SB-LUNA-B

    TDS™ 3" Sand MAX Mini w/ Brushed Bronze Luna Grate & Satin Bronze Edge

    TDS™ 3" Sand MAX Mini w/ Brushed Bronze Luna Grate & Satin Bronze Edge

    Regular price $1,172.28 USD
    Regular price Sale price $1,172.28 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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