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    • Popular Manufacturers
      • TDS
      • NDS
      • POLYCAST®
      • ULMA
      • Zurn
      • All Manufacturers
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      • Dura Slope
      • Mini Channel
      • Polycast 600/700
      • Slim Channel
      • SS600
      • ULMA U100K(X)
      • All Drainage Systems
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      • FP1200
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      • Polycast 600/700
      • Slim Channel
      • SS600
      • ULMA U100K(X)
      • All Drainage Systems
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  • NDS-Dura-XX-663-TDSdrains

    NDS® Dura Slope Kit with DS-663 HDPE Slotted Grate | Black Class B

    NDS® Dura Slope Kit with DS-663 HDPE Slotted Grate | Black Class B

    Regular price From $419.00 USD
    Regular price Sale price From $419.00 USD
    Unit price /  per 
  • NDS 554 - Box of 16 - Class B ADA Compliant Botanical Polyolefin 3" x 36" Grate - BLACK

    NDS 554 - Box of 16 - Class B ADA Compliant Botanical Polyolefin 3" x 36" Grate - BLACK

    NDS 554 - Box of 16 - Class B ADA Compliant Botanical Polyolefin 3" x 36" Grate - BLACK

    Regular price $596.76 USD
    Regular price Sale price $596.76 USD
    Unit price /  per 
  • 410 GP100KCA new perforated galv. steel with tread grate

    ULMA 410 Class A Perforated w/Tread Galvanized Steel 122mm x 1M Grate

    Sale

    ULMA 410 Class A Perforated w/Tread Galvanized Steel 122mm x 1M Grate

    Regular price $17.36 USD
    Regular price $24.80 USD Sale price $17.36 USD
    Unit price /  per 
    Sale
  • ULMA U100K Drain Channel kit w/ Bronze Age™ Luna Grate-RAW

    ULMA U100K Drain Channel kit w/ Bronze Age™ Luna Grate-RAW

    Sale

    ULMA U100K Drain Channel kit w/ Bronze Age™ Luna Grate-RAW

    Regular price From $155.28 USD
    Regular price $174.64 USD Sale price From $155.28 USD
    Unit price /  per 
    Sale
  • NDS Wave Mini Channel Cast Iron BoOF Grate

    NDS 555CI-BF Class B ADA Compliant Wave Cast Iron 3" x 12" Grate - BoOF

    NDS 555CI-BF Class B ADA Compliant Wave Cast Iron 3" x 12" Grate - BoOF

    Regular price $93.76 USD
    Regular price Sale price $93.76 USD
    Unit price /  per 
  • BA-CATH-0336 Stainless Steel Slot 3x36

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

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

    Regular price $249.00 USD
    Regular price Sale price $249.00 USD
    Unit price /  per 
  • NDS 555GY - Box of 16 - Class B ADA Compliant Wave Polyolefin 3" x 36" Grate - GRAY

    NDS 555GY - Box of 16 - Class B ADA Compliant Wave Polyolefin 3" x 36" Grate - GRAY

    NDS 555GY - Box of 16 - Class B ADA Compliant Wave Polyolefin 3" x 36" Grate - GRAY

    Regular price $596.74 USD
    Regular price Sale price $596.74 USD
    Unit price /  per 
  • NDS-245-TDSdrains

    NDS 245 Channel Strainer Coupling for NDS® Spee-D Channel

    NDS 245 Channel Strainer Coupling for NDS® Spee-D Channel

    Regular price $17.19 USD
    Regular price Sale price $17.19 USD
    Unit price /  per 
  • 9372 NDS Slim Channel Tee with Sand Slotted Grate

    NDS 9372 Slim Channel TEE with Slotted Grate - SAND

    NDS 9372 Slim Channel TEE with Slotted Grate - SAND

    Regular price $48.75 USD
    Regular price Sale price $48.75 USD
    Unit price /  per 
  • NDS 229 Stainless Steel Screws

    NDS 229 Stainless Screws for Spee-D® Channel Slotted Grates (48 PCS)

    NDS 229 Stainless Screws for Spee-D® Channel Slotted Grates (48 PCS)

    Regular price $39.28 USD
    Regular price Sale price $39.28 USD
    Unit price /  per 
  • NDS 555S - Box of 16 - Class B ADA Compliant Wave Polyolefin 3" x 36" Grate - SAND

    NDS 555S - Box of 16 - Class B ADA Compliant Wave Polyolefin 3" x 36" Grate - SAND

    NDS 555S - Box of 16 - Class B ADA Compliant Wave Polyolefin 3" x 36" Grate - SAND

    Regular price $596.74 USD
    Regular price Sale price $596.74 USD
    Unit price /  per 
  • NDS5383-90elbow-sand

    NDS 5383 Mini Channel 90 Degree Elbow with Gray Channel and Sand Slotted Grate

    NDS 5383 Mini Channel 90 Degree Elbow with Gray Channel and Sand Slotted Grate

    Regular price $57.84 USD
    Regular price Sale price $57.84 USD
    Unit price /  per 
  • NDS Dura Slope channel with White perforated grate NDS671

    NDS® Dura Slope Kit with DS-671 Perforated Grate | White

    NDS® Dura Slope Kit with DS-671 Perforated Grate | White

    Regular price From $426.41 USD
    Regular price Sale price From $426.41 USD
    Unit price /  per 
  • NDS® Dura Slope Kit with DS-661 HDPE Slotted Grate | Dark Gray

    NDS® Dura Slope Kit with DS-661 HDPE Slotted Grate | Dark Gray

    NDS® Dura Slope Kit with DS-661 HDPE Slotted Grate | Dark Gray

    Regular price From $419.00 USD
    Regular price Sale price From $419.00 USD
    Unit price /  per 
  • NDS-Dura-660-TDSdrains white slotted

    NDS® DS-660 Class B ADA Compliant Slotted Polyolefin 6" x 24" Grate - WHITE

    NDS® DS-660 Class B ADA Compliant Slotted Polyolefin 6" x 24" Grate - WHITE

    Regular price $70.40 USD
    Regular price Sale price $70.40 USD
    Unit price /  per 
  • Dura Slope Channel

    Dura Slope 6" Drain Channel - by NDS®

    Dura Slope 6" Drain Channel - by NDS®

    Regular price $211.44 USD
    Regular price Sale price $211.44 USD
    Unit price /  per 
  • 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 
  • NDS-253GR Green wave Spee-D

    NDS 555GR Class B ADA Compliant Wave Polyolefin 3" x 36" Grate - GREEN

    NDS 555GR Class B ADA Compliant Wave Polyolefin 3" x 36" Grate - GREEN

    Regular price $37.30 USD
    Regular price Sale price $37.30 USD
    Unit price /  per 
  • ULMA D100_0.6 Vinyl Ester FRP 488 Grate

    ULMA D100 Drain Channel w/488 Slotted Fiberglass Grate - Class C

    Sale

    ULMA D100 Drain Channel w/488 Slotted Fiberglass Grate - Class C

    Regular price From $478.41 USD
    Regular price $553.91 USD Sale price From $478.41 USD
    Unit price /  per 
    Sale
  • NDS-Dura-Slope-221 galvanized steel grate dura slope channel

    NDS Dura Slope Kit with DS-221 Galvanized Slotted Grate

    NDS Dura Slope Kit with DS-221 Galvanized Slotted Grate

    Regular price From $450.06 USD
    Regular price Sale price From $450.06 USD
    Unit price /  per 
  • NDS 555CI Class B ADA Compliant Wave Cast Iron 3" x 12" Grate - RAW

    NDS 555CI Class B ADA Compliant Wave Cast Iron 3" x 12" Grate - RAW

    NDS 555CI Class B ADA Compliant Wave Cast Iron 3" x 12" Grate - RAW

    Regular price $78.76 USD
    Regular price Sale price $78.76 USD
    Unit price /  per 
  • NDS-248-TDSdrains

    NDS 248 Channel Coupling for NDS® Spee-D Channel

    NDS 248 Channel Coupling for NDS® Spee-D Channel

    Regular price $8.73 USD
    Regular price Sale price $8.73 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

    Sale

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

    Regular price From $206.23 USD
    Regular price $240.15 USD Sale price From $206.23 USD
    Unit price /  per 
    Sale
  • Polycast-DG0442-galv-steel-grate-4ft-TDSdrains

    POLYCAST DG0442 Class A Slotted Galvanized 5" x 48" Grate

    POLYCAST DG0442 Class A Slotted Galvanized 5" x 48" Grate

    Regular price $89.26 USD
    Regular price Sale price $89.26 USD
    Unit price /  per 
  • RG-151224-AB

    RG-151224-AB Heavy Duty Ductile Iron Slotted 12″ x 24″ x 1.5″ Grate | TDS

    RG-151224-AB Heavy Duty Ductile Iron Slotted 12″ x 24″ x 1.5″ Grate | TDS

    Regular price $217.44 USD
    Regular price Sale price $217.44 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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