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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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      • Pour in Place (Concrete)
      • All Channel Materials
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      • All Load Classes
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      • TDS
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      • Zurn
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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 U100KX with 488 Vinyl Ester 0.6 FRP Grate

    ULMA U100KX Kit with TDS 488 Vinyl Ester Bar Grate 0.6" on Center (1M)

    Sale

    ULMA U100KX Kit with TDS 488 Vinyl Ester Bar Grate 0.6" on Center (1M)

    Regular price From $237.95 USD
    Regular price $305.93 USD Sale price From $237.95 USD
    Unit price /  per 
    Sale
  • AK100 ULMA Catch Basin with Galvanized Edging

    ULMA AK100 Catch Basin with Galvanized Edge

    Sale

    ULMA AK100 Catch Basin with Galvanized Edge

    Regular price $145.52 USD
    Regular price $187.10 USD Sale price $145.52 USD
    Unit price /  per 
    Sale
  • Hydro Plus with 486 Vinylester .9 inch center 1M Grate Class B

    ULMA HYDROPLUS with (486) Vinyl Ester FRP (0.9" on center) 1M Grates Class B

    Sale

    ULMA HYDROPLUS with (486) Vinyl Ester FRP (0.9" on center) 1M Grates Class B

    Regular price From $242.81 USD
    Regular price $309.57 USD Sale price From $242.81 USD
    Unit price /  per 
    Sale
  • Polycast-DG0657 perforated grate

    POLYCAST DG0657 ADA Perforated Stainless Steel 6" x 48" (Nominal) Grate Class B

    POLYCAST DG0657 ADA Perforated Stainless Steel 6" x 48" (Nominal) Grate Class B

    Regular price $244.67 USD
    Regular price Sale price $244.67 USD
    Unit price /  per 
  • ULMA HYDROPLUS with 480 ductile iron heel proof slotted grate

    ULMA HYDROPLUS Mini with Ductile Iron Slotted Grate (480) Class C

    Sale

    ULMA HYDROPLUS Mini with Ductile Iron Slotted Grate (480) Class C

    Regular price From $129.76 USD
    Regular price $159.97 USD Sale price From $129.76 USD
    Unit price /  per 
    Sale
  • POLY600-xx-675D-TDsdrains cast iron transverse ada grate polymer concrete channel Polycast

    POLYCAST 600 Series Kit with DG0675HD ADA Transverse Slotted Ductile Iron Grate

    POLYCAST 600 Series Kit with DG0675HD ADA Transverse Slotted Ductile Iron Grate

    Regular price From $223.24 USD
    Regular price Sale price From $223.24 USD
    Unit price /  per 
  • ULMA HYDROPLUS Mini Channel - Bottom View

    ULMA HYDROPLUS Mini with Stainless Steel Slotted Grate (454 / IN100KCC) Class C

    Sale

    ULMA HYDROPLUS Mini with Stainless Steel Slotted Grate (454 / IN100KCC) Class C

    Regular price From $337.52 USD
    Regular price $427.09 USD Sale price From $337.52 USD
    Unit price /  per 
    Sale
  • IA-Inter-0520-BF Iron Age Interlaken 5x20" Cast Iron Baked on Oil Finish Grate

    Iron Age IA-INTER-0520-BF Class B Interlaken Cast Iron 122mm x 500mm Grates - BoOF

    Iron Age IA-INTER-0520-BF Class B Interlaken Cast Iron 122mm x 500mm Grates - BoOF

    Regular price $233.09 USD
    Regular price Sale price $233.09 USD
    Unit price /  per 
  • Ulma Hydro Mini Plus 495

    ULMA HYDROPLUS Mini with 495/PNH100KCAM Slotted HP Grate Class A

    Sale

    ULMA HYDROPLUS Mini with 495/PNH100KCAM Slotted HP Grate Class A

    Regular price From $102.95 USD
    Regular price $125.50 USD Sale price From $102.95 USD
    Unit price /  per 
    Sale
  • DG0645 Galvanized Steel Solid Cover for POLYCAST

    POLYCAST DG0645 ADA Compliant Galvanized Steel Solid 6" x 48" Cover Class A

    POLYCAST DG0645 ADA Compliant Galvanized Steel Solid 6" x 48" Cover Class A

    Regular price $88.49 USD
    Regular price Sale price $88.49 USD
    Unit price /  per 
  • POLY600-SS-641D-TDSdrains stainless steel edge slotted cast iron grate polymer concrete channel Polycast

    POLYCAST 600 Series Kit with DG0641D Slotted Ductile Iron Grate and Galvanized Edging

    POLYCAST 600 Series Kit with DG0641D Slotted Ductile Iron Grate and Galvanized Edging

    Regular price From $237.04 USD
    Regular price Sale price From $237.04 USD
    Unit price /  per 
  • 480 FNHX100KCCM ductile iron heel-proof wave grate

    ULMA 480 Class C Wave Iron Heel-Proof Ductile Iron 122mm x 500mm Grate

    Sale

    ULMA 480 Class C Wave Iron Heel-Proof Ductile Iron 122mm x 500mm Grate

    Regular price $54.34 USD
    Regular price $48.91 USD Sale price $54.34 USD
    Unit price /  per 
    Sale
  • DG0655R_SS_Wedge_Wire_ClassD

    TDS DG0655R ADA Compliant Reinforced Wedge Wire Stainless Steel 6" x 48" Grate

    TDS DG0655R ADA Compliant Reinforced Wedge Wire Stainless Steel 6" x 48" Grate

    Regular price $560.00 USD
    Regular price Sale price $560.00 USD
    Unit price /  per 
  • Ulma U100KX Channel with Iron Age Heel Proof Regular Joe Grate

    Regular Joe Iron Age Grates on U100KX-ULMA Heelproof-RAW

    Sale

    Regular Joe Iron Age Grates on U100KX-ULMA Heelproof-RAW

    Regular price From $719.51 USD
    Regular price $815.39 USD Sale price From $719.51 USD
    Unit price /  per 
    Sale
  • IA-RAIN-0520-HP-BF

    Iron Age IA-RAIN-0520-HP-BF Class B Heel-Proof Rain Cast Iron 122mm x 500mm Grate - BoOF

    Iron Age IA-RAIN-0520-HP-BF Class B Heel-Proof Rain Cast Iron 122mm x 500mm Grate - BoOF

    Regular price $233.09 USD
    Regular price Sale price $233.09 USD
    Unit price /  per 
  • AEURO100KX ULMA Catch Basin

    ULMA AEURO100K Catch Basin with Galvanized Edge

    Sale

    ULMA AEURO100K Catch Basin with Galvanized Edge

    Regular price $121.26 USD
    Regular price $109.14 USD Sale price $121.26 USD
    Unit price /  per 
    Sale
  • HYDROPLUS with 497 ADA Mesh Polypropylene Grate Class B

    ULMA HYDROPLUS w/ 497 / PE100KCBM Polypropylene ADA Mesh Grate Load Class B - BLACK

    Sale

    ULMA HYDROPLUS w/ 497 / PE100KCBM Polypropylene ADA Mesh Grate Load Class B - BLACK

    Regular price From $153.41 USD
    Regular price $194.62 USD Sale price From $153.41 USD
    Unit price /  per 
    Sale
  • ULMA Hydro Mini Plus H80 with ULMA 410 Galvanized Steel erforated Grate Class A

    ULMA HYDROPLUS Mini with Galvanized Perforated Tread Grate (410 / GP100KCA) Class A

    Sale

    ULMA HYDROPLUS Mini with Galvanized Perforated Tread Grate (410 / GP100KCA) Class A

    Regular price From $64.99 USD
    Regular price $79.18 USD Sale price From $64.99 USD
    Unit price /  per 
    Sale
  • DG0900 Load Class F Ductile Iron Grate and Frame

    TDS DG0900 Class F H-20 Slotted Ductile Iron 6" x 16" Grate

    TDS DG0900 Class F H-20 Slotted Ductile Iron 6" x 16" Grate

    Regular price $108.00 USD
    Regular price Sale price $108.00 USD
    Unit price /  per 
  • 460 FNX100KCCM ULMA ductile iron grate

    ULMA 460 / FNX100KCCM Slotted Ductile Iron 124mm x 498mm Grate Class C

    Sale

    ULMA 460 / FNX100KCCM Slotted Ductile Iron 124mm x 498mm Grate Class C

    Regular price $40.99 USD
    Regular price $36.89 USD Sale price $40.99 USD
    Unit price /  per 
    Sale
  • AK100 ULMA Catch Basin with Galvanized Edging

    ULMA AKX100 Catch Basin with Stainless Steel Edge

    Sale

    ULMA AKX100 Catch Basin with Stainless Steel Edge

    Regular price $200.62 USD
    Regular price $257.94 USD Sale price $200.62 USD
    Unit price /  per 
    Sale
  • ULMA-M100KX

    ULMA M100KX Neutral Shallow Channel

    Sale

    ULMA M100KX Neutral Shallow Channel

    Regular price $202.59 USD
    Regular price $182.33 USD Sale price $202.59 USD
    Unit price /  per 
    Sale
  • Hydro Plus with 406 Heelproof Galvanized Mesh Grate

    ULMA HYDROPLUS with 406 / GEHX100KCB Galvanized Heel-Proof Mesh Grate Class B

    Sale

    ULMA HYDROPLUS with 406 / GEHX100KCB Galvanized Heel-Proof Mesh Grate Class B

    Regular price From $1,296.93 USD
    Regular price $1,622.03 USD Sale price From $1,296.93 USD
    Unit price /  per 
    Sale
  • DG0630 CATHEDRAL Stainless Steel POLYCAST and SS600

    Bronze Age DG0630 CATH 304 Stainless Steel 5.25" x 48" (Nominal) Grate | Class A

    Bronze Age DG0630 CATH 304 Stainless Steel 5.25" x 48" (Nominal) Grate | Class A

    Regular price $235.10 USD
    Regular price Sale price $235.10 USD
    Unit price /  per 
  • AEURO100KX ULMA Catch Basin

    ULMA AEURO100KX In-Line Catch Basin with Stainless Steel Edge

    Sale

    ULMA AEURO100KX In-Line Catch Basin with Stainless Steel Edge

    Regular price $121.26 USD
    Regular price $109.14 USD Sale price $121.26 USD
    Unit price /  per 
    Sale
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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 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
  • 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

    $89.29
  • LD100X-2 Locking Device for ULMA Grates

    LD100X-2 Locking Device for ULMA Grates

    $14.40
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shop@trenchdrain.com

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