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  • Drainage Kits
    • Popular Manufacturers
      • TDS
      • NDS
      • POLYCAST®
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      • All Manufacturers
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      • Dura Slope
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      • FP1200
      • Mini Channel
      • Polycast 600/700
      • Slim Channel
      • SS600
      • ULMA U100K(X)
      • All Drainage Systems
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  • FG-MESH-CB12 fiberglass catch basin 12 inch grate

    FG-MESH-CB12 Class A Fiberglass 12" x 12" x 1" Catch Basin Grate - Dark Grey

    FG-MESH-CB12 Class A Fiberglass 12" x 12" x 1" Catch Basin Grate - Dark Grey

    Regular price $60.83 USD
    Regular price Sale price $60.83 USD
    Unit price /  per 
  • Micro Mesh Molded Fiberglass Grating

    FG-MICRO-CB18 Class A ADA Compliant 18" x 18" Grate - Dark GRAY

    FG-MICRO-CB18 Class A ADA Compliant 18" x 18" Grate - Dark GRAY

    Regular price $263.89 USD
    Regular price Sale price $263.89 USD
    Unit price /  per 
  • IA-Inter-CB12-BF Iron Age Interlaken 12" Catch Basin Grate in Baked on Oil Finish Cast Iron

    Iron Age IA-INTER-CB12-BF Class B Interlaken Cast Iron 12" x 12" Grate - BoOF

    Iron Age IA-INTER-CB12-BF Class B Interlaken Cast Iron 12" x 12" Grate - BoOF

    Regular price $297.44 USD
    Regular price Sale price $297.44 USD
    Unit price /  per 
  • MMG-SB-BA-BARS

    TDS™ 3" Gray MAX Mini w/ Natural Bronze BARS Grate & Satin Bronze Edge

    TDS™ 3" Gray MAX Mini w/ Natural Bronze BARS Grate & Satin Bronze Edge

    Regular price From $1,007.28 USD
    Regular price Sale price From $1,007.28 USD
    Unit price /  per 
  • Stainless Steel Perforated 4"grate

    4" Perforated Stainless Steel Grates (1 Set of 4) DD20-002

    4" Perforated Stainless Steel Grates (1 Set of 4) DD20-002

    Regular price $989.16 USD
    Regular price Sale price $989.16 USD
    Unit price /  per 
  • A-FOAM-0336 Stainless Steel 3x36

    Bronze Age TDS-FOAM-0336-L Foam 316L Stainless Steel 3″x36″ Grate Load Class B

    Bronze Age TDS-FOAM-0336-L Foam 316L Stainless Steel 3″x36″ Grate Load Class B

    Regular price $249.00 USD
    Regular price Sale price $249.00 USD
    Unit price /  per 
  • IA-Sun-CB12-BF Iron Age Sun 12" Catch Basin Grate in Baked On Oil Finish

    Iron Age IA-SUN-CB12-BF Class B Sun Cast Iron 12" x 12" Grate - Baked on Oil Finish

    Iron Age IA-SUN-CB12-BF Class B Sun Cast Iron 12" x 12" Grate - Baked on Oil Finish

    Regular price $297.44 USD
    Regular price Sale price $297.44 USD
    Unit price /  per 
  • IA-QUE-3x12 BOOF Iron Age Cast Iron for Mini Channel

    Iron Age IA-QUE-0312-HP-BF Class B Transverse Slotted Cast Iron 3" x 12" Grate - BoOF

    Iron Age IA-QUE-0312-HP-BF Class B Transverse Slotted Cast Iron 3" x 12" Grate - BoOF

    Regular price $108.68 USD
    Regular price Sale price $108.68 USD
    Unit price /  per 
  • BA-TAR-0312-BF TDS Bronze Age Tardis grate in BoOF

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

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

    Regular price From $659.78 USD
    Regular price Sale price From $659.78 USD
    Unit price /  per 
  • MMG-BF-555 TDS MAX Mini in Gray with Oil Brushed Edge and NDS BoOF Wave Grate

    TDS™ 3" Gray MAX Mini w/ Wave BoOF Grate & Oil Rubbed Bronze Edge

    TDS™ 3" Gray MAX Mini w/ Wave BoOF Grate & Oil Rubbed Bronze Edge

    Regular price From $830.88 USD
    Regular price Sale price From $830.88 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 
  • max-min-stainless-stainlessperf

    TDS™ 3" Gray MAX Mini w/Perforated HP 316L Stainless Steel Grate & Stainless Steel Edge

    TDS™ 3" Gray MAX Mini w/Perforated HP 316L Stainless Steel Grate & Stainless Steel Edge

    Regular price From $484.60 USD
    Regular price Sale price From $484.60 USD
    Unit price /  per 
  • BA-LUNA-0312-BF TDS Bronze Age Luna Grate in Ductile Iron with BoOF finish

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

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

    Regular price From $665.58 USD
    Regular price Sale price From $665.58 USD
    Unit price /  per 
  • Iron Age 4x24 BoOF Locust Spee-D Heel Proof cast iron grate

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

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

    Regular price $337.48 USD
    Regular price Sale price $337.48 USD
    Unit price /  per 
  • MMG-SS-CATH MAX Mini kit with gray channel and stainless steel grate

    TDS™ 3" Gray MAX Mini w/Cathedral HP 316L Stainless Steel Grate & Stainless Steel Edge

    TDS™ 3" Gray MAX Mini w/Cathedral HP 316L Stainless Steel Grate & Stainless Steel Edge

    Regular price From $684.98 USD
    Regular price Sale price From $684.98 USD
    Unit price /  per 
  • BA-PED-0312-BF TDS Bronze Age Pedreda BoOF grate

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

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

    Regular price From $659.78 USD
    Regular price Sale price From $659.78 USD
    Unit price /  per 
  • BA-BARS-0312-BF

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

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

    Regular price From $659.78 USD
    Regular price Sale price From $659.78 USD
    Unit price /  per 
  • MMG-BF-CATH-BF

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

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

    Regular price From $665.58 USD
    Regular price Sale price From $665.58 USD
    Unit price /  per 
  • MMG-SS-DECO MAX Mini kit with gray channel and stainless steel grate

    TDS™ 3" Gray MAX Mini w/Deco HP 316L Stainless Steel Grate & Stainless Steel Edge

    TDS™ 3" Gray MAX Mini w/Deco HP 316L Stainless Steel Grate & Stainless Steel Edge

    Regular price From $588.98 USD
    Regular price Sale price From $588.98 USD
    Unit price /  per 
  • Mini-Acanthus-Raw 3x12 Iron Age deco grate

    Iron Age IA-ACA-0312 Class B Acanthus Cast Iron 3" x 12" Grate - RAW

    Iron Age IA-ACA-0312 Class B Acanthus Cast Iron 3" x 12" Grate - RAW

    Regular price $74.36 USD
    Regular price Sale price $74.36 USD
    Unit price /  per 
  • NGB1200 Catch Basin Sun Grate

    Iron Age IA-SUN-CB12 Class B Sun Cast Iron 12" x 12" Grate - Natural

    Iron Age IA-SUN-CB12 Class B Sun Cast Iron 12" x 12" Grate - Natural

    Regular price $221.65 USD
    Regular price Sale price $221.65 USD
    Unit price /  per 
  • TDS™ 3" MAX Mini w/ Iron Age Que BoOF Grates - Sand Channel

    TDS™ 3" MAX Mini w/ Iron Age Que BoOF Grates - Sand Channel

    TDS™ 3" MAX Mini w/ Iron Age Que BoOF Grates - Sand Channel

    Regular price From $1,066.72 USD
    Regular price Sale price From $1,066.72 USD
    Unit price /  per 
  • Iron Age Raw Acanthus Grate in Sand Mini Channel MCKS-IA-Aca

    NDS 3" Sand Mini Channel Kit with Iron Age Acanthus Grate - Natural

    NDS 3" Sand Mini Channel Kit with Iron Age Acanthus Grate - Natural

    Regular price From $592.93 USD
    Regular price Sale price From $592.93 USD
    Unit price /  per 
  • Natural Locust in Grey Mini Channel

    NDS 3" Gray Mini Channel Kit with Iron Age Locust Grate - Natural

    NDS 3" Gray Mini Channel Kit with Iron Age Locust Grate - Natural

    Regular price From $587.08 USD
    Regular price Sale price From $587.08 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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