Factory-direct steel gratings & stair treads, shipped worldwide
Galvanized Channel Drain
Handles storm water and truck wheels alike. Galv Channel built for real sites.
Itemized quote within 24 hours · Free drawing review included
Channels & grates, one factory
Bodies, covers and gratings quoted as one spec
Certified & tested
Reports on request, MTC with every order
Samples in 5–7 days
Production in 15–25 working days
FOB Tianjin
Shipped worldwide, EXW / CIF negotiable
Load class guide
EN 124 Load Classes, Referenced to Your Site Traffic
A galvanized channel drain is only as good as the grate above it. Match the class to the traffic first, then let the channel width follow the water — here is how the common classes map onto our real grating ranges.
| Class (referenced to EN 124) | Test load | Typical duty | Recommended grating spec | Channel setting |
|---|---|---|---|---|
| A15 | 15 kN | Pedestrian paving, patios, entrances | Bearing bars 20×3 to 25×3 mm, 30/40 mm centers | Shallow channel on paving bed |
| B125 | 125 kN | Driveways, kerbside parking | Bearing bars 30×3 to 40×4 mm, 30/40 mm centers | Concrete haunch |
| C250 | 250 kN | Kerb lines, delivery yards | Bearing bars 40×4 to 50×5 mm, 40 mm centers | Anchored frame at the kerb |
| D400 | 400 kN | Road crossings, truck lanes | Bearing bars 60×5 to 100×8 mm, 40/60 mm centers | Full frame anchored to the structure |
Classes and test loads are public EN 124 parameters, referenced here for selection only. We produce to the class you specify — certified & tested, reports on request.
Not sure which class your site needs? Tell us the traffic — we will spec channel and grate together inside the 24-hour quote.
Build & coating
From Bare Steel to a Weather-Proof Channel Drain
1 · Channel body from Q235B plate
U-sections are cut, formed and welded to your drawing — width, depth and invert set to the run, not to a stock list.
2 · Grate cut to channel width
Welded bars at 30/40/60 mm centers, or press-locked close mesh down to 11/11 mm where heels and small wheels cross the line.
3 · Hot-dip galvanizing
Channels and grates go to a certified galvanizing partner near our mill for ASTM A123 / ISO 1461 hot-dip galvanizing — typically 2–3 days, already counted inside your production window.
Why galvanized
Why Specifiers Choose the Galvanized Channel Drain
Storm water and truck wheels, one line
Open-mesh grating gives runoff a straight path into the channel while load-rated bearing bars take wheel traffic — no separate system for rain and loads.
Hot-dip galvanized as the outdoor default
HDG to ASTM A123 / ISO 1461 seals every weld and cut edge after fabrication — the weather-proof default for outdoor and civil duty, verified by coating-thickness sampling on every batch.
Any length, factory-direct, with mill certs
Runs cut and banded to your drawings in panels up to 6 m, quoted direct from the mill FOB Tianjin — mill certificates in the pack, no middleman margins.
Applications
Where a Galvanized Channel Drain Earns Its Keep
When the run sits outdoors and chloride attack is not the design case, hot-dip galvanized steel is the sensible default — a galvanized drain line that takes traffic and rain in one section.
Driveways & parking aprons
B125–C250 duty across the vehicle track; close-mesh options where feet follow wheels.
Road & kerb lines
D400 crossings where wheels meet the kerb, with frames anchored to the structure.
Industrial yards & hardstandings
Long runs across loading docks and paved yards, galvanized against standing water.
Pedestrian paving & entrances
A15 lines with press-locked close mesh for heel-friendly, fast-draining thresholds.
Specifications
Channel and Grate Specifications
| Parameter | Range |
|---|---|
| Grate bearing bar | 20×3 mm to 100×8 mm, plain or serrated |
| Bar spacing | 30 / 40 / 60 mm centers · 11/11 mm close mesh in press-locked |
| Grate width | Cut to channel width, panels up to 1.25 m |
| Run length | Panels up to 6 m, banded to your drawings |
| Channel body | Q235B plate, formed and welded to your section drawing |
| Material | Q235B carbon steel |
| Surface | Hot-dip galvanized (ASTM A123 / ISO 1461) |
| Frames & fixings | Sourced companion items, supplied alongside our channels and covers |
Materials & test documents
Every heat of Q235B enters production with its mill test certificate verified at goods-in — the first of our five QC stages. Galvanized channel drains leave with documentation, not promises:
- Mill test certificate to EN 10204 Type 3.1
- Coating-thickness sampling report for every galvanized batch
- Factory inspection report and Declaration of Conformity per destination
The full channel width × grate schedule is provided with your quote — cut lists are confirmed per drawing before production starts.
Standards & compliance
Produced to Recognized Standards — Documents on Request
EN 124 load classes
Grates referenced to classes A15–D400 for selection; produced to the class you specify, with documents on request.
ASTM A123 / ISO 1461 HDG
Galvanized coating thickness checked by sampling on every galvanized batch before channels and grates are released.
CE & SGS tested
Certified & tested, reports on request — we show documents you can verify, not a certificate wall.
Custom made
Cut, Banded and Galvanized to Your Drawings
Send your channel layout
Run lengths, channel width, load class and grate mesh — or just photos and a sketch. Drawing review is free.
Quote within 24 hours
Itemized, FOB Tianjin as standard — EXW or CIF on request. Small trial orders welcome.
Samples in 5–7 days, production in 15–25
Working days after drawing confirmation, hot-dip galvanizing included. Installation drawings and fixing layout ship with the order.
Factory-direct quote
Get a Factory Quote
Send your galvanized channel layout — runs, widths and load class — for a factory quote. We reply within one business day.
- Five-stage QC, including HDG coating-thickness sampling before release
- DoC, MTC EN 10204 3.1 and inspection report with every order
- Factory audits welcome — see the lines before you commit
Prefer to talk? WhatsApp us or sales@dtsteelladder.com
Request your quote
Five fields — we do the rest.
FAQ
Frequently Asked Questions
What is the lead time for galvanized channel drains?
Samples ship in 5–7 working days and mass production runs 15–25 working days after drawing confirmation, both including hot-dip galvanizing. Rush production in 10–15 days is possible with a surcharge — ask in your quote.
How is the galvanized coating controlled?
Channels and grates are hot-dip galvanized to ASTM A123 / ISO 1461 at a certified partner plant near our mill, typically 2–3 days and already counted inside your production window. Coating thickness is checked by sampling on every batch, and reports are available on request.
How are galvanized channel drains shipped and priced?
Shipped worldwide from Tianjin Port — FOB Tianjin as standard, EXW or CIF negotiable. Pricing is itemized per m² or per ton in your quote; we do not publish a fixed price list.
Related pages
Related Drainage Pages
Galvanized Drainage Channel
The full system view — channel, grating and accessories specified as one package.
View page →Galvanized Channel Grating
Grate choice for galvanized channels — water path and mesh options.
View page →Metal Channel Drain
Channel drain fundamentals — formats, bodies and grating options.
View page →Galvanized Steel Slot Drain
Narrow slot drains — when a slit beats an open grating channel.
View page →Trench Grating
The linear trench grating line for open channel runs.
View page →Trench Drain Covers
Cover fundamentals — spans, locking options and load framing.
View page →