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Black NDS 6-inch round drainage grate (SKU 40) shown from above and angled side view, HDPE construction, 6-3/4" top diameter, 2-3/8" height, 9.1 sq. in. open area

NDS 6 in. Round Drain Grate — Black HDPE, Fits 6" Pipes

Brand: NDS
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$23.08
$17.31
SKU 40
In Stock (3)

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Durable and lightweight, the NDS 6 in. round drain grate (SKU 40) provides reliable protection for small landscape drainage outlets. Made from UV-stabilized HDPE, this black grate resists fading, chemicals and rust while preventing debris from entering drain lines. It’s designed for easy, soil-tight installation over 6" Spee‑D® basins, sewer and drain pipes, and single-wall corrugated pipe.

  • Material & durability: UV-treated high-density polyethylene (HDPE) resists cracking, chemical exposure and weathering for long service life.
  • Compatibility: Fits 6" Spee‑D® Catch Basin, 6" sewer & drain pipe and 6" single-wall corrugated pipe for a secure, soil-tight fit.
  • Dimensions & capacity: Top diameter 6-3/4", height 2-3/8", open area 9.1 in² and flow rate ~28 GPM with 1/2" head.
  • Performance: Grate openings are 1/4" wide; rated Class A (1–60 psi) when properly installed—suitable for pedestrian, bicycle and wheelchair traffic.
  • Installation & maintenance: Lightweight design simplifies placement and removal for cleaning; maintenance-free material eliminates rust and corrosion concerns.

This versatile round grate is ideal for driveways, patios, walkways and landscaped areas where light surface water must be captured and conveyed to downstream drainage. For detailed specifications, load tables, and installation diagrams refer to the manufacturer’s tech sheet and installation detail for NDS round grates.

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Frequently Asked Questions

What pipes and basins does this 6 in. grate fit?
Fits 6" Spee‑D® Catch Basin, 6" sewer & drain pipe and 6" single-wall corrugated pipe for a soil-tight connection.
Is the grate suitable for pedestrian and wheelchair traffic?
Yes. When properly installed it is Class A load-rated (1–60 psi), ADA-compliant and heel-proof for light pedestrian traffic.
How much water can the 6 in. round grate handle?
The grate provides about 9.1 in² open area and accommodates roughly 27.8–28 GPM with a 1/2" head under normal conditions.

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