Frequently Asked Questions
You asked, we listened. Find answers to all your technical questions about NDS trench drains, catch basins and accessories as well as installation tips and chemical resistance guidelines. Be informed before you buy!
Many of NDS’s channel drain systems offer decorative grates. The NDS Mini Channel and Spee-D Channel systems provide decorative plastic grates as well as decorative cast iron grates. The NDS Dura Slope system offers decorative iron grates and perforated stainless steel grates.
Because NDS grates rest inside the lip of the channel, there is an edge line where the channel is visible. New decorative plastic grates for the Mini Channel and Spee-D Channel eliminate the edge line, which lends the drain systems more decorative appeal.
Load rating measures trench drain compression resistance - how much weight a trench drain can withstand without structural damage - based on DIN 19580 international guidelines, which separate drainage applications into six categories:
Load Class A
3,372lbs. - 15 kN
Residential, pedestrian, and cyclist traffic
Load Class B
28,100lbs. - 125 kN
Sidewalks, parking lots, and car parking decks
Load Class C
56,200lbs. - 250 kN
Curb sides, highway shoulders, and parking areas
Load Class D
89,920lbs. - 400 kN
Trafficked sections of roads and highways
Load Class E
134,800lbs. - 600 kN
Industrial areas, forklifts, traffic, ports, and dock sides
Load Class F
202,320lbs. - 900 kN
Aircraft runways, docks, and high-impact wheel loads
NDS Dura Slope and Pro-Series channel drains can withstand load traffic on driveways with proper grating. The NDS Spee-D Channel can be installed in low-traffic driveways if it is recessed 1/4" in the concrete.
The Micro Channel and Mini Channel systems are not rated for vehicle traffic.
Because they do not feature tongue-and-groove connection mechanisms, the Mini Channel and Spee-D Channel by NDS use a plastic coupler to connect channels together.
Trench Drain Systems is proud to offer project consultations for all interested contractors, architects and engineers. Our technical specialists are trained in chemical resistance, load rating and flow rates for NDS trench drain, Polycast trench drain, ACO trench drain, MEA-Josam, ABT Trench Drain, Zurn trench drain and more.
Please call a Trench Drain Systems technical specialist at 610-638-1221.
The Dura Slope system features a 0.7 percent slope
Trench Drain Systems requires all customers purchasing pre-sloped trench drain systems to sign off on a project layout. This ensures that outlet depth is correct, preventing costly error and allowing us to ship your order more efficiently.
A project layout is not needed for Micro Channel, Mini Channel, and Spee-D Channel projects.
At Trench Drain Systems, we have a variety of package and freight carriers we work with. The size of your order will dictate which carrier we use. We pack your order in the best manner to assure safe delivery to your job site.
Whether it's boxes or pallets, our experienced staff is ready to pack and handle shipping for your order.
Trench Drain Systems charges a 25% restocking fee on all returned orders. Due to time and cost, additional charges for custom fabrications, channel miter cuts, non-standard grating finishes and express shipping cannot be refunded.
ALWAYS note any damage on the form before signing for any shipment. Trench Drain Systems is not responsible for damage occurring during delivery. However, we are happy to assist our customers with freight claims.
Most orders ship same day or next day depending on what material is in stock. Delivery times will vary based on the size of the order and distance from our warehouse to your jobsite.
Due to credit card processing fees, Trench Drain Systems includes a $40 minimum order fee on all credit card purchases less than $200. This charge does not apply for orders placed on DrainageKits.com or TrenchDrainGrates.com.
TDS gladly accepts cash, checks, Visa, Mastercard, Discover, and American Express.
TDS charges a $50.00 fee for checks returned for non-sufficient funds.