Trench Drain Systems · Superior Quality
National leader in superior-quality trench drains — polymer, cast iron, steel and stainless grates. Engineered tough, priced right, and backed by a free project takeoff and same-day proposal.
ANATOMY OF A TRENCH DRAIN
SECTION · N.T.S.
Grate · pre-sloped channel · end cap · end outlet — one engineered system.
Design yours →Trusted on projects for
50
States served
80+
Systems in stock
4
Channel materials
A–F
Load classes, EN 1433
Sheet 02 — Pre-Sloped & Neutral Channels
Every trench drain needs fall to the outlet — the engineering question is where that fall lives. A neutral channel keeps a constant depth and lets your pavement grade carry the water. A pre-sloped channel builds a 0.5%–0.7% fall into the body itself, so the pavement can stay dead level. Both are proven on thousands of sites worldwide; the right answer depends on yours. We stock, spec and ship both.
Choose neutral when…
The pavement already falls toward the discharge point, the run is long, or uniform depth keeps excavation and budget simple — identical sections, easy to stock, easy to extend.
Choose pre-sloped when…
The surface must stay level — warehouse floors, aprons, ADA routes — or you want the built-in 0.5%–0.7% fall keeping velocity high enough to carry silt to the outlet on its own.
Not sure? That's our job.
Send the plans. We stock both systems in four materials, so the recommendation follows your site — run length, grade, traffic and chemistry — not a catalog.
Sheet 03 — Anatomy of the System
Every quote we send covers the complete assembly — grate, channel, end cap and outlet — matched, numbered and ready to set. One purchase order, one accountable supplier.
01 · GRATE
Polymer, galvanized, stainless, cast or ductile iron — ADA, heel-proof, anti-slip, locking and decorative patterns.
02 · PRE-SLOPED CHANNEL
The heart of the system — pre-sloped with a 0.5%–0.7% fall built in, or neutral constant depth. Numbered, matched and ready to set.
03 · END CAP
Closes the high end of the run and seals the system against backfill and fines.
04 · END OUTLET
Bottom or end outlet sized to your storm line — the whole run drains to one engineered point.
Sheet 04 — Channel Materials
Single-material suppliers spec whatever they stock. We engineer across all four channel materials, so the recommendation follows your chemistry, loads and budget — not our inventory.
HDPE
High-Density Polyethylene
Inert, snap-together channels with concrete-class strength at a fraction of the weight and install cost. The all-purpose workhorse.
Fiber Concrete
Fiber-Reinforced Precast
Maximum mass and load capacity with steel or iron edge rails — built for forklifts, trucks, roadways and airfields.
FRP
Fiber-Reinforced Polymer
Lightweight, corrosion-proof and dimensionally stable for chemical, coastal and wash-down environments.
Stainless
Hygienic / Chemical Grade
The sanitary choice for breweries, food processing and labs — unfazed by caustics, hot wash-down and thermal cycling.
Sheet 05 — Main Product Lines
From residential driveways to chemical plants and airside pavement — every line below ships with its spec sheet one tap away.
Sheet 06 — Load Ratings · EN 1433
Every surface carries an engineered load rating. Spec to the heaviest wheel that will ever cross the grate — not the average one — and the system never becomes the weak point.
Sheet 07 — Shop by Application
From military bases and airfields to breweries, kennels and driveways — jump straight to the systems already proven on your kind of job.
Sheet 08 — Recent Work & Case Studies
Air Force bases, airfields, amphitheaters, power plants. When the site can't afford standing water, the site calls Swiftdrain.
Swiftdrain
Engineered in New York, made for the world.
DURABILITY
Four channel materials rated to EN 1433 Class A–F — from garden paths to aircraft pavement — specified by the U.S. Army, Air Force and Fortune 500 operators.
FUNCTIONALITY
Pre-sloped and neutral hydraulics, sized to your storm event — every system arrives as one numbered assembly that installs the way the drawings say it will.
DESIGN
ADA, heel-proof, decorative and architectural grate patterns in iron, steel, stainless and polymer — drainage that belongs in the finished surface, not just under it.
Sheet 09 — For Engineers & Spec Writers
Submittal specifications, shop drawings and hydraulic sizing on request — free, and usually same-day. Everything below is built to drop straight into your drawing set.
TOOL
Drainage Flow Calculator
Size your run with the rational method and live NOAA rainfall data — Q, velocity and pipe diameter in seconds.
Drainage calculatorTOOL
Design Your System
Configure grate, channel, end cap and outlet into one numbered assembly, ready to quote.
Design your systemLIBRARY
Catalogs & Spec Sheets
Full technical catalogs and per-product PDF cut sheets for every line we stock.
CatalogsGUIDE
Load Rating Guide
EN 1433 Class A–F explained with real wheel loads, surfaces and matching systems.
Load rating guideSheet 10 — How It Works
1
Send your plans
Email drawings, a sketch, or just the run length and what drives over it. Any format works — PDF, photo, napkin.
2
Get the takeoff & spec
We do a free comprehensive takeoff, match the load class and material, and return a formal proposal — usually within hours.
3
Ship from stock
Most items are on the shelf across our national distribution network, ready to ship to all 50 states — with submittal specs and shop drawings on request.
Sheet 11 — Frequently Asked
Both are proven systems — they differ in where the fall lives. A pre-sloped channel has 0.5% to 0.7% of fall manufactured into numbered sections, so water moves to the outlet even under dead-level pavement. A neutral channel keeps a constant depth and uses the pavement grade or invert design to carry the water — uniform sections that are economical on long runs and sites that already fall the right way. We stock and spec both, in all four materials.
Match the class to the heaviest wheel that will ever cross the grate, not the average one. EN 1433 runs from Class A (pedestrians, 15 kN) through Class F (aircraft pavements, 900 kN). Driveways are typically Class B, parking lots Class C, forklift routes Class D, docks Class E, runways Class F. Full guide →
HDPE is the all-purpose choice: light, inert and fast to install. Fiber-reinforced concrete carries the heaviest sustained loads. FRP owns corrosive, coastal and wash-down environments. Stainless is the hygienic pick for breweries, food processing and labs. Send us the site chemistry and traffic and we'll match it.
Send plans and we return a comprehensive takeoff and formal proposal the same day — usually within hours. We're headquartered in New York with a national distribution network — most items are in stock and ship to all 50 states.
Yes — submittal specifications, shop drawings and hydraulic sizing support are available on request at no charge, formatted to drop straight into your project submittal set.
Multiple grate options are ADA compliant, heel-proof and bicycle-safe — including grates for the Swiftdrain 600 and Series 300. Tell us the pedestrian exposure and we'll spec a compliant grate at your load class. ADA grates →
More questions? Read the full FAQ →
Sheet 12 — Issued for Construction
Free comprehensive takeoff, submittal specifications or shop drawings on request — usually within the hour. Pre-sloped or neutral, we'll spec what your site actually needs.