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Collection: NDS Grates

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General Purpose Drainage - Interior (105 products)
General Purpose Drainage - External (107 products)
Transportation (9 products)

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900 Series (10 products)
1200 Series (23 products)
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Pro Series 3 (1 products)
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Pro Series 8 (4 products)
Pro Series 12 (2 products)
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Spee-D (33 products)

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Class A (48 products)
Class B (111 products)
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Plastic - (PP, HDPE, PE) (126 products)
Plastic - (PP, HDPE, PE) - Gray (31 products)
Plastic - (PP, HDPE, PE) - Sand (31 products)

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Grate (165 products)
Channel Grate (114 products)
Catch Basin Grate (49 products)
Part (2 products)
Channel Part (3 products)

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Bronze - Brushed (4 products)
Bronze - Polished (2 products)
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Fiberglass (1 products)
Fiberglass - 1.50" Sq Mesh (1 products)
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Plastic/HDPE - Black (27 products)
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Stainless Steel 316L (2 products)

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2.25" for NDS Slim Channel (10 products)
2.38" for Zurn Z880 (1 products)
2.75" for NDS Mini Channel (31 products)
3.00" Dia (1 products)
3.88" for Pro Series 3 (1 products)
4.00" Dia (1 products)
4.13" for NDS Spee-D (31 products)
4.75" x 4.75" for NDS Pipe Adaptors (1 products)
5.18" for Pro Series 5 (10 products)
6.00" for NDS DuraSlope (24 products)
6.00" Dia (2 products)
6.13" x 6.13" for NDS Pipe Adaptors (1 products)
7.88" for Pro Series 8 (4 products)
7.88" x 7.88" (1 products)
9.0" x 9.0" for NDS 900 Series (11 products)
12.0" x 12.0" for NDS 1200 Series (24 products)
15.00" Dia (1 products)
18.0" x 18.0" for NDS 1800 Series (7 products)
24.0" x 24.0" for NDS 2400 Series (3 products)

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0.25" with T-Top (9 products)
0.38" (17 products)
0.38" with T-Top (14 products)
.50" (1 products)
0.75" (71 products)
1.00" (7 products)
1.125" (32 products)
1.25" with T-Top (1 products)
1.50" with T-Top (1 products)
1.75" with T-Top (1 products)
2.00" (4 products)
4.75" with T-Top (1 products)

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SLOTTED (54 products)
SQ DECO (3 products)
TILE (2 products)
WAVE (7 products)
WEAVE (2 products)

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SLOTTED (65 products)

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165 products

NDS 1216 Catch Basin Riser for 12 x 12 NDS Catch Basin

NDS 1216 Catch Basin Riser for 12 x 12 NDS Catch Basin

Regular price $39.77 USD

Regular price Sale price $39.77 USD
Unit price per
NDS® DS-232 Class D ADA-Compliant Slotted Ductile Iron 6" x 24" Grate

NDS® DS-232 Class D ADA-Compliant Slotted Ductile Iron 6" x 24" Grate

Regular price $94.81 USD

Regular price Sale price $94.81 USD
Unit price per
NDS 823 Class C Slotted Ductile Iron 5" x 20" Grate

NDS 823 Class C Slotted Ductile Iron 5" x 20" Grate

Regular price $192.32 USD

Regular price Sale price $192.32 USD
Unit price per
NDS 885 Class C Slotted Cast Iron 12" x 20" Grate

NDS 885 Class C Slotted Cast Iron 12" x 20" Grate

Regular price $357.55 USD

Regular price Sale price $357.55 USD
Unit price per
NDS 714 Class B Slotted HDPE 3" x 20" Grate - Light Gray

NDS 714 Class B Slotted HDPE 3" x 20" Grate - Light Gray

Regular price $18.40 USD

Regular price Sale price $18.40 USD
Unit price per
NDS 981 Atrium HDPE 9" X 9" Grate - BLACK

NDS 981 Atrium HDPE 9" X 9" Grate - BLACK

Regular price $60.63 USD

Regular price Sale price $60.63 USD
Unit price per
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
NDS Slim Channel 9252 Class A Plastic Square Deco 2" x 36" Grate - SAND

NDS Slim Channel 9252 Class A Plastic Square Deco 2" x 36" Grate - SAND

Regular price $21.22 USD

Regular price Sale price $21.22 USD
Unit price per
NDS DS-664 Class B ADA Compliant Slotted Polyolefin 6" x 24" Grate - SAND

NDS DS-664 Class B ADA Compliant Slotted Polyolefin 6" x 24" Grate - SAND

Regular price $66.70 USD

Regular price Sale price $66.70 USD
Unit price per
NDS 543 Class B ADA Compliant Heel-Proof HDPE 3" x 36" Grate - BLACK

NDS 543 Class B ADA Compliant Heel-Proof HDPE 3" x 36" Grate - BLACK

Regular price $29.28 USD

Regular price Sale price $29.28 USD
Unit price per
NDS 2411 Class B Slotted HDPE 24" x 24" Grate - BLACK

NDS 2411 Class B Slotted HDPE 24" x 24" Grate - BLACK

Regular price $578.65 USD

Regular price Sale price $578.65 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

Regular price $78.76 USD

Regular price Sale price $78.76 USD
Unit price per
NDS 554CI-BF Class B ADA Compliant Botanical Cast Iron 3" x 12" Grate - BoOF

NDS 554CI-BF Class B ADA Compliant Botanical Cast Iron 3" x 12" Grate - BoOF

Regular price $93.16 USD

Regular price Sale price $93.16 USD
Unit price per
NDS 240 Class B ADA Compliant Slotted HDPE 4" x 24" Grate - WHITE

NDS 240 Class B ADA Compliant Slotted HDPE 4" x 24" Grate - WHITE

Regular price $38.43 USD

Regular price Sale price $38.43 USD
Unit price per
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 $93.16 USD

Regular price Sale price $93.16 USD
Unit price per
NDS 1212S Class B ADA Compliant Slotted HDPE 12" x 12" Grate - SAND

NDS 1212S Class B ADA Compliant Slotted HDPE 12" x 12" Grate - SAND

Regular price $71.12 USD

Regular price Sale price $71.12 USD
Unit price per
NDS 541 - Box of 16 - Class B ADA Compliant Slotted HDPE 3" x 36" Grate - GREY

NDS 541 - Box of 16 - Class B ADA Compliant Slotted HDPE 3" x 36" Grate - GREY

Regular price $468.47 USD

Regular price Sale price $468.47 USD
Unit price per
900DSG Downspout Defender™ Grate 9" x 9"

900DSG Downspout Defender™ Grate 9" x 9"

Regular price $35.42 USD

Regular price Sale price $35.42 USD
Unit price per
NDS 554GY - Box of 16 - Class B ADA Compliant Botanical Polyolefin 3" x 36" Grate - GRAY

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

Regular price $596.74 USD

Regular price Sale price $596.74 USD
Unit price per
NDS 554S Class B ADA Compliant Botanical Polyolefin 3" x 36" Grate - SAND

NDS 554S Class B ADA Compliant Botanical Polyolefin 3" x 36" Grate - SAND

Regular price $37.30 USD

Regular price Sale price $37.30 USD
Unit price per

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Resources

Shipping / Returns

Determining Your Grate Size

Load Class Chart

Drainage News

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May 27, 2026
What is Load Class and Why Is It Important?
Feb 23, 2024
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Feb 02, 2024
TDS Bronze Age™ Collection
Oct 31, 2023

On Sale

ULMA HYDROPLUS Mini w/ BARS Ductile Iron Grate Class C
~~$237.16~~ $183.00
ULMA HYDROPLUS Mini w/ FERN Ductile Iron Grate Class C
~~$237.16~~ $183.00
ULMA HYDROPLUS Mini w/ CATHEDRAL Ductile Iron Grate Class C
~~$237.16~~ $183.00

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