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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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    • Popular Manufacturers
      • TDS
      • Bronze Age
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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 Stainless Steel Mesh Grate IEX100KCB 432_IEX100KCBM 433

    ULMA IEX100KCB / 432 Class B Mesh Stainless Steel 124mm x 1M Grate

    Sale

    ULMA IEX100KCB / 432 Class B Mesh Stainless Steel 124mm x 1M Grate

    Regular price $364.56 USD
    Regular price $468.72 USD Sale price $364.56 USD
    Unit price /  per 
    Sale
  • 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 $722.26 USD
    Regular price Sale price From $722.26 USD
    Unit price /  per 
  • ULMA drain channel with stainless steel edge and Iron Age Carbochon Baked on Oil Finish grate

    ULMA U100KX w/ Iron Age Carbochon Grate-BoOF

    Sale

    ULMA U100KX w/ Iron Age Carbochon Grate-BoOF

    Regular price From $351.82 USD
    Regular price $385.74 USD Sale price From $351.82 USD
    Unit price /  per 
    Sale
  • POLY500-AA-692-TDSdrains cast iron frame with Patriot cast iron grate shallow POLYCAST polymer concrete channel

    POLYCAST 500 Series Kit with DG0692 Patriot Ductile Iron Grate and Frame

    POLYCAST 500 Series Kit with DG0692 Patriot Ductile Iron Grate and Frame

    Regular price From $574.94 USD
    Regular price Sale price From $574.94 USD
    Unit price /  per 
  • 488_Vinylester FRP 0.6 in center 1M Grate

    TDS 488 Vinyl-Ester Fiberglass Bar 122mm x 1M Bar Grate - 0.6" on center - Class C

    Sale

    TDS 488 Vinyl-Ester Fiberglass Bar 122mm x 1M Bar Grate - 0.6" on center - Class C

    Regular price $194.32 USD
    Regular price $249.84 USD Sale price $194.32 USD
    Unit price /  per 
    Sale
  • IA-OBLIO-CB12 Iron Age 12x12" Raw Cast Iron Oblio Grate

    Iron Age IA-OBLIO-CB12-HP Class B Heel-Proof Oblio Cast Iron 12" x 12" Grate - RAW

    Iron Age IA-OBLIO-CB12-HP Class B Heel-Proof Oblio Cast Iron 12" x 12" Grate - RAW

    Regular price $231.66 USD
    Regular price Sale price $231.66 USD
    Unit price /  per 
  • ULMA HYDROPLUS Mini w/ WAVE Ductile Iron Grate Class C

    ULMA HYDROPLUS Mini w/ WAVE Ductile Iron Grate Class C

    Sale

    ULMA HYDROPLUS Mini w/ WAVE Ductile Iron Grate Class C

    Regular price From $228.68 USD
    Regular price $237.16 USD Sale price From $228.68 USD
    Unit price /  per 
    Sale
  • IA-Inter-CB09-BF Iron Age 9" Interlaken Grate in Baked on Oil Finish Cast Iron

    Iron Age IA-INTER-CB09-BF Class B Interlaken Cast Iron 9" x 9" Grate - BoOF

    Iron Age IA-INTER-CB09-BF Class B Interlaken Cast Iron 9" x 9" Grate - BoOF

    Regular price $270.27 USD
    Regular price Sale price $270.27 USD
    Unit price /  per 
  • ULMA HYDRO PLUS with IA-ARGO-0520-HP-BF Iron Age Argo Heelproof BoOF Grate-Class B

    ULMA HYDROPLUS w/ Iron Age IA-ARGO-0520-HP-BF Argo Heel Proof BoOF Cast Iron Grate Class B

    Sale

    ULMA HYDROPLUS w/ Iron Age IA-ARGO-0520-HP-BF Argo Heel Proof BoOF Cast Iron Grate Class B

    Regular price From $559.11 USD
    Regular price $583.04 USD Sale price From $559.11 USD
    Unit price /  per 
    Sale
  • ULMA HYDROPLUS w/ LUNA Ductile Iron Grate - Class C

    ULMA HYDROPLUS w/ LUNA Ductile Iron Grate - Class C

    Sale

    ULMA HYDROPLUS w/ LUNA 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
  • MV+200DI-678

    ULMA MV+200D w/ 678 HP Ductile Iron 9X20 Slotted Grate Class E

    Sale

    ULMA MV+200D w/ 678 HP Ductile Iron 9X20 Slotted Grate Class E

    Regular price From $218.45 USD
    Regular price $280.86 USD Sale price From $218.45 USD
    Unit price /  per 
    Sale
  • Vinylester-487-FRP-0.9-in-on-center-0.5M-length-510x510

    TDS 487 Class B Vinyl-Ester Fiberglass Bar 122mm x 0.5M Bar Grate - 0.9" centers

    Sale

    TDS 487 Class B Vinyl-Ester Fiberglass Bar 122mm x 0.5M Bar Grate - 0.9" centers

    Regular price $74.43 USD
    Regular price $95.70 USD Sale price $74.43 USD
    Unit price /  per 
    Sale
  • MMG-SB-BA-PED MAX Mini Natural Pedreda with Bronze Veneer Edging

    TDS™ 3" Sand MAX Mini w/ Natural Bronze Pedreda Grates & Satin Bronze Edge

    TDS™ 3" Sand MAX Mini w/ Natural Bronze Pedreda Grates & Satin Bronze Edge

    Regular price From $1,033.59 USD
    Regular price Sale price From $1,033.59 USD
    Unit price /  per 
  • ULMA drain channel with stainless steel edge and polypropylene grate

    ULMA U100K Kit with 495 / PNH100KCAM-GRIS Polypropylene ADA Heel Proof Grate – GRAY

    Sale

    ULMA U100K Kit with 495 / PNH100KCAM-GRIS Polypropylene ADA Heel Proof Grate – GRAY

    Regular price From $304.36 USD
    Regular price $381.33 USD Sale price From $304.36 USD
    Unit price /  per 
    Sale
  • ULMA HYDROPLUS Mini w/ PEDREDA Ductile Iron Grate Class C

    ULMA HYDROPLUS Mini w/ PEDREDA Ductile Iron Grate Class C

    Sale

    ULMA HYDROPLUS Mini w/ PEDREDA Ductile Iron Grate Class C

    Regular price From $228.68 USD
    Regular price $237.16 USD Sale price From $228.68 USD
    Unit price /  per 
    Sale
  • ULMA drain channel with stainless steel edge and Iron Age Regular Joe Baked on Oil Finish grate

    Regular Joe Iron Age Grates on U100KX ULMA Heelproof - BoOF

    Sale

    Regular Joe Iron Age Grates on U100KX ULMA Heelproof - BoOF

    Regular price From $351.82 USD
    Regular price $385.74 USD Sale price From $351.82 USD
    Unit price /  per 
    Sale
  • MV+200K-658 ULMA MULTIV with Glavanized Edge and 658 grate

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

    Sale

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

    Regular price From $189.92 USD
    Regular price $244.18 USD Sale price From $189.92 USD
    Unit price /  per 
    Sale
  • 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 $722.26 USD
    Regular price Sale price From $722.26 USD
    Unit price /  per 
  • ULMA M100KX Channel with Stainless Steel Edge and BoOF Mission Bay Grate

    ULMA M100KX Kit w/Iron Age Heel Proof Mission Bay Grate | BoOF

    Sale

    ULMA M100KX Kit w/Iron Age Heel Proof Mission Bay Grate | BoOF

    Regular price From $3,269.23 USD
    Regular price $3,527.33 USD Sale price From $3,269.23 USD
    Unit price /  per 
    Sale
  • ULMA Hydro Mini Plus H80 with IA-ARGO-0520-HP Iron Age Argo Heel proof Grate Class B

    ULMA HYDROPLUS Mini w/ Iron Age IA-ARGO-0520-HP Argo Heel Proof Raw Cast Iron Grate Class B

    Sale

    ULMA HYDROPLUS Mini w/ Iron Age IA-ARGO-0520-HP Argo Heel Proof 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
  • DG0646 Galvanized Steel perforated grates for POLYCAST

    POLYCAST DG0646H Class A ADA Compliant Perforated Galvanized Steel 6" x 24" Grate

    POLYCAST DG0646H Class A ADA Compliant Perforated Galvanized Steel 6" x 24" Grate

    Regular price $45.68 USD
    Regular price Sale price $45.68 USD
    Unit price /  per 
  • POLYCAST 600 with DG0644 Fiberglass Grate POLY600-XX-644

    POLYCAST® 600 Vinyl Ester Series Kit with FG0644 Fiberglass

    POLYCAST® 600 Vinyl Ester Series Kit with FG0644 Fiberglass

    Regular price From $421.14 USD
    Regular price Sale price From $421.14 USD
    Unit price /  per 
  • ULMA HYDROPLUS w/ CATHEDRAL Ductile Iron Grate - Class C

    ULMA HYDROPLUS w/ CATHEDRAL Ductile Iron Grate - Class C

    Sale

    ULMA HYDROPLUS w/ CATHEDRAL 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
  • HYDROPLUS with Iron Age Oblio BoOF Cast Iron

    ULMA HYDROPLUS with Iron Age OA5-20I21 / IA-OBLIO-0520 Oblio BoOF Cast Iron Grate Class B

    Sale

    ULMA HYDROPLUS with Iron Age OA5-20I21 / IA-OBLIO-0520 Oblio BoOF Cast Iron Grate Class B

    Regular price From $559.11 USD
    Regular price $583.04 USD Sale price From $559.11 USD
    Unit price /  per 
    Sale
  • POLYCAST600-xx-DG0657R-TDSdrains

    POLYCAST® 600 Series Kit w/DG0657R Reinforced Perforated Stainless Grate

    POLYCAST® 600 Series Kit w/DG0657R Reinforced Perforated Stainless Grate

    Regular price From $493.73 USD
    Regular price Sale price From $493.73 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 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

    $80.36 $62.50
  • 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 $26.22
  • LD100X-2 Locking Device for ULMA Grates

    LD100X-2 Locking Device for ULMA Grates

    $12.96 $10.08
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