Skip to content
Top view of NDS 1810 18 in. gray square catch basin grate showing slotted openings and polyolefin surface drainage.

NDS 1810 18 in. Square Catch Basin Grate — Gray Polyolefin

Brand: NDS
Save 25%
$310.55
$232.91
SKU 1810

Notify me when back in stock

The NDS 1810 18 in. Square Catch Basin Grate in gray is a durable, low-profile drainage grate engineered for residential landscapes, patios, driveways, and light commercial applications. Constructed from structural polyolefin (HDPE-grade) with UV inhibitors, this grate resists fading, cracking, and most chemical exposure while blocking leaves and debris to protect downstream piping. Designed to fit the NDS 18 in. catch basin series, it provides reliable surface drainage and long-term performance with minimal maintenance.

  • Actual dimensions: 16-7/8" x 16-7/8" x 1" — fits 18 in. square catch basin openings.
  • Material: Structural polyolefin/HDPE with UV inhibitors for weather resistance and chemical stability.
  • Load & compliance: Class B medium-duty rating when properly installed (suitable for medium-duty pneumatic tire traffic); ADA-compliant for pedestrian use.
  • Performance: Slotted openings (approx. 7/16") provide substantial open surface area for efficient flow and debris screening.
  • Compatibility: Use with NDS 18 in. catch basin series, risers, and low-profile adapters (examples: 1882, 1884, 1800-series products).
  • Benefits: Lightweight, rustproof, maintenance-free and easy to install; ideal for keeping water away from structures and landscaped areas.

Refer to NDS product literature and the included technical documents for detailed specifications, flow tables, and installation instructions. For projects requiring vehicular traffic, follow the manufacturer's installation guidelines (embed in concrete as specified) to achieve posted load ratings. The NDS 1810 grate offers a practical, long-lasting alternative to cast-iron or concrete covers while maintaining reliable drainage performance.

Reviews

Frequently Asked Questions

What catch basins does the NDS 1810 grate fit?
Fits the NDS 18 in. catch basin series and compatible risers/adapters (for example: 1882, 1884, 1800-series).
How durable is the polyolefin construction and is it UV-resistant?
Structural polyolefin (HDPE-grade) with UV inhibitors resists fading, cracking and most chemical exposure; maintenance-free.
Can vehicles drive over this grate and what load rating applies?
When installed per manufacturer instructions and encased in concrete, the grate meets Class B medium-duty loads for medium-duty pneumatic tire traffic.

Add a FREE Pair of Gloves to Your Order

Spend $35+ Add a FREE Pair of Gloves to Your Order Select Your Size