Does the NDS Spee-D Channel ship with grates or accessories?

No. The Spee-D Channel is a modular system. The channel body ships alone. For each 4-foot section, you will need to order grates, end fittings, couplings, and grate screws separately.

What is the load rating for NDS Spee-D Channel Drains?

Load ratings depend on the grate selected; pedestrian traffic grates are rated for Class A workloads. Most other Spee-D channel grates are rated for Class B workloads. The Spee-D channel itself is capable of supporting a maximum of Class B workloads.

Can the NDS Spee-D Channel system make bends, turns, and curves?

Yes. NDS manufactures prefabricated 45-degree elbows, 90-degree elbows, tees, and crosses with integrated grates. Custom angles can be cut with a miter saw. The new Spee-D Contour articulating channel allows 0-9 degrees of deflection per section for smooth curved layouts.

How much water can the NDS Spee-D Channel handle?

The Spee-D Channel handles 94.3 GPM at 1% slope, approximately equivalent to a 4-inch diameter pipe. Grate flow rates range from 23.70 to 59.04 GPM per linear foot depending on grate type.

What is the Spee-D Contour articulating channel?

The Spee-D Contour is an articulating channel that creates smooth, natural curves for free-form pool decks, fountains, splash pads, and fire pits. Each middle section allows 0-9 degrees of deflection and snaps directly to adjacent sections without couplings. A Start and End Section Kit transitions from Contour runs to straight Spee-D channel.

NDS Spee-D Channel FAQS and Resources

Q: What lengths and sizes are available for NDS Spee-D Channel?

The NDS Spee-D Channel (#400) is available in 4-foot and 10-foot sections and can be cut to any length with a miter saw. A 2-foot section with a bottom spigot outlet (#234) is also available. Grates are sold in 2-foot sections, requiring two per 4-foot channel.

Q: How does water drain out of the NDS Spee-D Channel?

Water exits through the end of the channel using a 2-inch spigot end outlet (#246) or 3/4-inch offset end outlet (#249), or through the bottom using the dedicated 2-foot bottom outlet section (#234). End outlets connect to 2-inch Schedule 40 PVC; bottom and offset outlets connect to 3-inch or 4-inch sewer and drain fittings.

Technical Data

Specifications

Key dimensions, materials, and performance data for the NDS Spee-D Channel system.

Channel Body — NDS #400

Length	4 ft (#400) · 10 ft (#400-10) · 2 ft bottom outlet (#234)
Width (OD)	5-3/4″
Width (ID)	4-3/4″
Height	3-3/4″
Material	UV Protected High-Density Polyethylene (HDPE)
Flow Capacity	94.3 GPM at 1% slope (equivalent to 4″ diameter pipe)
Connection Method	Solvent weld (PVC glue) with couplings
Outlet Sizes	2″ Sch. 40 (end) · 3″ & 4″ S&D (bottom/offset)
Cut-to-Length	Yes — miter saw

Channel Grates

Grate Length	24″ (2 ft) — 2 per 4 ft channel
Grate Width	4-1/8″
Grate Height	3/4″
Open Surface Area	16.92 sq. in. per linear foot
Material	UV Protected HDPE (plastic); Cast Iron; Galvanized Steel
Load Class (HDPE)	Class B — 61–175 PSI, <20 mph
Fasteners	4 stainless steel screws per grate — FH #8 × 1″ (sold separately)
Expansion Gap	1/8″ between grates (recommended)

Design & Engineering

Key Features

What makes the NDS Spee-D Channel the #1 bestselling channel drain in the USA.

NDS Spee-D Channel flying buttress design

Patented Flying Buttress Design

Structural support on both sides and underneath the channel prevents deflection under load and during concrete encasement. Bottom flanges anchor for straight installation with minimal floating — the same proven design used across the entire NDS Profile Channel series.

NDS Spee-D Channel honeycomb wall detail

Honeycomb Wall Construction

Patented honeycomb wall extrusions with UV inhibitors maximize rigidity and crush resistance while keeping the channel lightweight. This structure distributes load evenly — ideal for pedestrian and light vehicular applications.

NDS Spee-D Channel modular accessory ecosystem

Widest Accessory Ecosystem

No other residential channel drain offers more layout flexibility. Prefabricated 45° elbows, 90° elbows, tees, crosses, multiple outlet types, strainer couplings, basins, and the new Contour articulating channel make virtually any hardscape design possible.

NDS Spee-D Channel rustproof HDPE construction

Rustproof & Maintenance-Free

Injection-molded HDPE construction eliminates corrosion. UV inhibitors protect against sun-induced fading and cracking. Chemical resistance handles road salt, pool chemicals, and de-icing agents. Stainless steel grate screws further reduce long-term maintenance.

Where to Use It

Recommended Applications

The NDS Spee-D Channel handles moderate water flows across residential and light-commercial hardscapes. For heavy vehicular traffic or wider channels, see NDS Pro Series or Dura Slope.

Patios

Collect and divert stormwater away from patio surfaces, preventing pooling, slips, and concrete staining in outdoor living areas.

Pool Decks

Manage splash-out and rainwater on pool surrounds. Chemical-resistant HDPE withstands prolonged chlorine exposure. Pair with the Contour articulating channel for free-form pool edges.

Driveways

Intercept surface water at garage thresholds and driveway transitions. Class B-rated HDPE grates support automobiles and light trucks at low speeds; iron grates handle up to Class C.

Tennis & Sport Courts

Maintain dry, safe playing surfaces by intercepting runoff at court edges. Greater surface area than the Mini Channel handles higher flow volumes.

Spas & Hot Tubs

Control overflow and condensation drainage around spa installations. The Spee-D's 4″ width captures more water than the 3″ Mini Channel for larger splash zones.

Residential Hardscapes

Versatile enough for walkways, garden borders, outdoor kitchens, courtyards, and general residential use. The broadest accessory lineup handles complex layouts with ease.

New: Curved Drainage

Spee-D Contour™ Articulating Channel

The Spee-D Contour brings curved drainage to the Spee-D ecosystem — create smooth, natural arcs around free-form pools, fountains, fire pits, and splash pads without cutting custom miters.

0–9° of Deflection Per Section

Each middle section allows up to 9 degrees of articulation, enabling smooth curves that follow the contour of any hardscape feature — open arcs or closed loops.

Snap-Together Assembly

Middle sections snap directly to each other — no couplings needed between Contour pieces. The Start & End Section Kit transitions from the Contour to straight Spee-D runs and standard accessories.

Full Spee-D Ecosystem Compatibility

Integrates seamlessly with straight Spee-D channels, couplings, end caps, end outlets, and all other Spee-D accessories for hybrid straight-and-curved drainage layouts.

Shop Middle Sections — $9.65 Shop Start & End Kit — $19.98

NDS Spee-D Contour articulating channel drain start and end sections showing curved layout capability

Spee-D Contour Start & End Section Kit with gray grates — transitions between curved Contour sections and straight Spee-D channel runs.

NDS Spee-D Contour middle section with gray grate allowing 0 to 9 degrees of deflection

Contour Middle Section — snap multiple together for smooth, natural curves. 51 GPM flow capacity.

Customization

Grate Options & Colors

Choose from 6 standard colors, 2 decorative patterns, and 3 metal finishes to complement any hardscape.

Standard Plastic Grate Colors

White #240

Gray #241

Green #242

Black #243

Sand #244

Brick Red #251

Decorative & Metal Grates

Decorative Botanical — #252

24″ × 4-1/8″ · Available in Black, Gray, Green, Sand · Class B · From $35.08

Decorative Wave — #253

24″ × 4-1/8″ · Decorative wave pattern · Class B · From $35.08

Cast Iron (Botanical) — View

24″ sections · Class C · Heavy-duty, traditional aesthetic · $110.20

Cast Iron (Wave) — View

24″ sections · Class C · Decorative wave in heavy-duty iron · $110.20

Galvanized Steel — #254

24″ sections · Corrosion-resistant steel finish · $35.86

NDS Spee-D Channel installed in pool patio setting showing grate color options

System Components

Accessories & Fittings

The Spee-D Channel ships without accessories — build your complete drainage run from these modular components. The Spee-D system offers the widest selection of prefabricated fittings of any NDS profile channel.

Getting Started

Installation Overview

A high-level look at the installation process. Refer to the NDS CAD details linked below for application-specific instructions.

Excavate the trench to required depth and width, accounting for concrete encasement per load-class requirements.
Set channel in place using 6″ installation stakes or rebar secured with tie wire. Position top 1/8″ below finished surface edge.
Connect sections using couplings (#248) or strainer couplings (#245). Apply PVC solvent weld cement for a watertight seal.
Install end fittings — end caps (#247) to close the run, spigot end outlets (#246), offset outlets (#249), or bottom outlet sections (#234) for discharge piping.
Encase in concrete per the applicable NDS installation detail for your traffic class.
Install grates once concrete has cured. Seat into molded grooves, secure with 4 stainless steel screws per grate. Leave 1/8″ expansion gap between grates.

CAD Details & Resources

NDS Spee-D Channel rebar installation method showing channel secured to rebar with tie wire in concrete trench

Alternative rebar installation method — secure channel flanges to ½″–5/8″ rebar with tie wire.

Common Questions

Frequently Asked Questions

Answers drawn from our team's direct experience specifying and selling the NDS Spee-D Channel system.

The NDS Spee-D Channel (#400) is available in 4-foot and 10-foot sections and can be cut to any length with a miter saw. A 2-foot section with a bottom spigot outlet (#234) is also available for runs requiring downward discharge. Grates are sold in 2-foot sections — two are required per 4-foot channel. Call us directly at (803) 324-3225 for 10-foot section pricing.

No. The Spee-D Channel is a modular system — the channel body ships alone. For each 4-foot channel section, you will need to order: two channel grates, one fitting for each end (end cap or spigot end outlet), and 8 grate screws (4 per grate, sold in 50-count packs). This lets you configure each run exactly as your project requires.

Load ratings depend on the grate you select. The Spee-D channel drain body is rated for up to Class B loads, while some grates may only be suitable for Class A workloads; please see individual product descriptions for accurate load ratings. See our Load Rating Recommendation Guide for information on what each load class means.

Three options: through the end of the channel using a 2″ spigot end outlet (#246) for Schedule 40 PVC, through the end using the 3″ & 4″ offset end outlet (#249) for sewer & drain pipe, or through the bottom using the dedicated 2-foot bottom outlet section (#234) which fits 3″ or 4″ S&D fittings and includes a pre-inserted atrium grate to prevent debris from entering discharge pipes.

Yes — the Spee-D Channel has the most comprehensive set of directional fittings of any NDS residential channel. NDS manufactures prefabricated 45° elbows, 90° elbows, tees, and crosses — each sold with an integrated grate. You can also cut custom angles with a miter saw. For smooth curves, the new Spee-D Contour articulating channel allows 0–9° of deflection per section to follow curved hardscapes without cutting.

Channel-to-channel connections use either the standard coupling (#248) or the strainer coupling (#245), which includes a built-in debris filter to catch leaves before they enter outlet pipes. Apply PVC solvent weld cement for a watertight bond — the same process used for gluing PVC pipe and fittings.

The Spee-D Channel handles 94.3 GPM at 1% slope — approximately equivalent to a 4″ diameter pipe of equivalent length. Grate flow rates range from 23.70 to 59.04 GPM per linear foot depending on grate type. For projects requiring greater flow capacity, consider the NDS Pro Series (available in 3″, 5″, 8″, and 12″ widths).

Grates seat into a groove within the Spee-D Channel body. Each grate requires four stainless steel flat-head screws (#8 × 1″), sold separately in 50-count packs. The stainless steel construction minimizes long-term maintenance.

The Spee-D Contour is an articulating channel that creates smooth, natural curves — ideal for free-form pool decks, fountains, splash pads, and fire pits. Each middle section allows 0–9° of deflection and snaps directly to adjacent Contour sections without couplings. A Start & End Section Kit transitions from curved Contour runs to straight Spee-D channel and standard accessories. The Start & End Kit is not required for closed-loop designs.

The Spee-D Channel is wider (4-3/4″ vs 3-1/2″) and has greater flow capacity (equivalent to a 4″ pipe vs 3″), making it better suited for larger drainage areas. The Spee-D also offers a broader accessory ecosystem — including crosses, strainer couplings, basins, offset outlets, and the new Contour articulating channel — that the Mini Channel does not. Choose the Mini Channel when a narrower profile is preferred and Class A–B ratings are sufficient; choose the Spee-D when you need more flow capacity, more fitting options, or curved layouts.

Explore Other Options

Other Trench Drain Product Lines

Different projects call for different systems. Here's how the Spee-D Channel compares to other trench drain lines we carry — and when you might want to consider an alternative.

NDS

Mini Channel Drain

The narrower sibling to the Spee-D Channel at 3-1/2″ wide. A 3″ equivalent flow capacity suits lighter drainage demands. Offers brass grate options for upscale hardscapes. Choose the Mini Channel when a smaller visual footprint matters and the Spee-D's wider accessory ecosystem isn't required.

3-1/2″ Width HDPE Class A–B Brass Grate Options

Shop NDS Mini Channel →

NDS

Pro Series Channel Drain

The workhorse of NDS trench drains. Available in 3″, 5″, 8″, and 12″ widths with polypropylene construction. Snap-together male-to-female locking clips, integrated rebar clips, 8 outlet options per section, and Qwik-Turn radius couplings for curved layouts. Choose this over Spee-D when you need higher flow capacity, wider channels, or Class C/D load ratings for vehicular traffic.

3″ – 12″ Widths Polypropylene Up to Class D Snap Couplings

Shop NDS Pro Series →

NDS

Dura Slope Trench Drain

NDS's pre-sloped trench drain system with a built-in 0.7% gradient that eliminates the need to grade the trench bed manually. HDPE construction with the ProFit grate locking system and DuraLoc tongue-and-groove joints. Ideal for loading docks, parking lots, running tracks, and any application requiring engineered slope and up to Class D load handling.

6-5/8″ Width HDPE Up to Class D 0.7% Pre-Slope

Shop NDS Dura Slope →

NDS

Slim Channel Drain

The newest residential channel from NDS, blending Mini Channel durability with internal snap couplings. Narrower 2-1/4″ profile makes it less visually intrusive. Snap-in grates simplify maintenance. Best suited for pedestrian-only applications where a minimal footprint matters — walkways, amusement parks, and decorative hardscapes.

2-1/4″ Width HDPE Class A Snap-In Grates

Shop NDS Slim Channel →

Josam

Pro-Plus Channel Drain

A fiberglass-reinforced polymer concrete system for commercial and industrial projects. Available in Pro-Plus 100 (4″) and Pro-Plus 200 (8″) widths. Polymer concrete offers exceptional strength-to-weight ratios and freeze/thaw resistance. Choose Josam when specifying for commercial construction, industrial facilities, or projects requiring polymer concrete.

4″ & 8″ Widths Polymer Concrete Commercial Grade

Shop Josam Pro-Plus →

BG Filcoten

Tec Series Trench Drains

German-engineered fiber-reinforced concrete trench drains available in 4″ (V100), 8″ (V200), and 12″ (V300) profiles, plus a Pro V mini channel option. Filcoten delivers the structural performance of concrete at a fraction of the weight. Ideal for architects and engineers specifying European-standard drainage systems.

4″ – 12″ Widths Fiber Concrete European Standard

Shop BG Filcoten →