Factory-direct steel gratings & stair treads, shipped worldwide
Light Duty Grating
Light duty grating for walkways and light traffic floors.
Itemized quote within 24 hours · Free drawing review included
Mill-made, factory-direct
Four product lines under one roof, audits welcome
Certified & tested
Reports on request, MTC with every order
Samples in 5–7 days
Production in 15–25 working days
FOB Tianjin, any qty
Small trial orders welcome, itemized quote in 24h
Duty class comparison
Light Duty vs Standard vs Heavy Duty
Duty class is a traffic decision before it is a steel decision. The comparison below shows what changes between classes inside our real bar range — and when the honest answer is to step up.
| Dimension | Light Duty | Standard Duty | Heavy Duty |
|---|---|---|---|
| Bearing bar | 20×3 mm class — the light end of our 20×3 to 100×8 mm range | Mid-range sections for general industrial floors | Thickest sections, toward 100×8 mm |
| Bar spacing | 30 / 40 mm; 60 mm where debris falls straight through | 30 / 40 mm centers | Closer centers with heavier bars |
| Designed traffic | People, trolleys, light traffic floors | Mixed foot and light industrial traffic | Forklifts, trucks, dock and road wheel loads |
| Panel weight | Lightest per m² in the welded range — two-person handling on many sizes | Moderate | Heaviest — plan mechanical lifting |
| Span approach | Shorter spans or closer support spacing | Standard span tables | Widest clear spans under load |
| Choose it for | Walkways, access platforms, pedestrian floors | General platforms and walkways | Vehicle routes and heavy point loads |
When light duty is the right spec
The floor carries people, not wheels: plant walkways, mezzanine access, utility platforms, sunken pit covers on foot routes. Specifying the 20×3 mm class here keeps panels light to lift, low in dead load on support steel, and open enough to shed water and debris — the right engineering, not just the lightest one.
When to step up — honestly
If a trolley becomes a pallet truck, or a maintenance route becomes a forklift route, the light bar section stops being economical at any price. Step up to heavy duty grating for wheel loads, or ask about 1 inch bar grating designations when you need a recognized mid-range section. Send the traffic picture — we will size it for you.
Not sure which class your floor needs? Send your drawings — we will spec it inside the 24-hour quote.
How a light duty panel is sized
Three Decisions Behind a Light Duty Panel
1 · Bar section at the light end
Light duty starts with the smallest sections we run — the 20×3 mm class end of the 20×3 to 100×8 mm bearing-bar range. Plain surface for smooth trolleys, serrated where the route gets wet.
2 · Spacing set by debris and heels
Where debris drops through, wider 60 mm centers cut weight and cost. On public or rooftop routes, tighten to 30 / 40 mm — or move to press-locked close mesh down to 11 / 11 mm for heel-proof flooring.
3 · Finish matched to exposure
Outdoor walkways get hot-dip galvanizing to ASTM A123 / ISO 1461 — coating thickness checked by sampling on every batch. Washdown and coastal zones move to SS304 / SS316 stainless light sections.
Why specify light duty
Why Buyers Specify Light Duty Grating From the Mill
Specs sized for foot traffic
Request light duty grating specs and you get the full picture — bar section, centers, span and finish for people-only routes. Duty class chosen from the traffic, not padded for the sake of steel weight.
Light to handle, fast to lay
Smaller sections mean lighter panels per m² — easier lifts into mezzanines and roof routes, less dead load on support steel, and quicker installation on site. A lightweight walkway grating spec your crews will notice.
Factory-direct, any quantity
Mill-made panels shipped FOB Tianjin — small trial lots or full containers, with light lots verified through the same five-stage QC as every other order. Help from factory engineers is free, within 24 hours.
Applications
Where Light Duty Grating Works
Open-mesh flooring for everywhere people walk and nothing heavier rolls — the light bar section carries the traffic without carrying steel you did not need.
Plant walkways & access routes
People-only walkways around process equipment, where open mesh keeps the route drained and visible.
Mezzanines & storage catwalks
Light flooring that trims dead load on mezzanine framing — and lifts into place without rigging gear.
Light traffic floors
Trolley and pedestrian floors in warehouses and plant rooms — serrated surface optional for wet areas.
Pit & trench covers on foot routes
Covers over utility trenches and inspection pits where only people pass — heel-proof mesh where heels will.
Specifications
Light Duty Grating Specifications
| Parameter | Range |
|---|---|
| Bearing bar | From 20×3 mm — light duty end of the 20×3 to 100×8 mm range, plain or serrated |
| Bar spacing | 30 / 40 / 60 mm centers; press-locked close mesh down to 11 / 11 mm |
| Cross bar | Twisted square or round, per specification |
| Panel width | Up to 1.25 m |
| Panel length | Up to 6 m |
| Materials | Q235B carbon steel · SS304 / SS316 stainless |
| Surface | Black or hot-dip galvanized (ASTM A123 / ISO 1461) |
| Load & weight data | Unit-weight and span tables for your exact section — provided with your quote |
Materials & test documents
Every heat of Q235B, SS304 or SS316 enters production with its mill test certificate verified at goods-in — the first of our five QC stages. Light lots get the same paper trail as containers:
- Mill test certificate to EN 10204 Type 3.1
- Factory inspection report with every shipment
- Declaration of Conformity prepared per order destination
Standards & compliance
Produced to Recognized Standards — Documents on Request
ANSI / NAAMM MBG 531
Welded light duty panels produced to MBG 531 reference practice, with weld inspection on our five-stage QC plan.
ASTM A123 / ISO 1461 HDG
Galvanized coating thickness checked by sampling on every galvanized batch before light duty panels are released.
CE & SGS tested
Certified & tested, reports on request — we show documents you can verify, not a certificate wall.
Custom made
Custom Light Duty Panels, Cut and Banded to Your Drawings
Send your drawing
Panel sizes, route width, traffic picture, quantities — 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, any quantity.
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
Request light duty grating specs and pricing — send panel sizes and the traffic they carry, and an itemized quote lands within 24 hours.
- Free help from factory engineers — reply within 24 hours
- 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 makes grating light duty?
Duty class is set by the bearing bar section and the traffic the floor must carry. Light duty uses the small end of our bar range — 20×3 mm class sections — with spacing chosen for pedestrian routes and light traffic floors. If wheels or heavy point loads arrive, we will tell you to step up to heavier bars instead of selling you an under-spec panel.
Can light duty grating be galvanized or stainless?
Yes. Q235B carbon steel panels are hot-dip galvanized to ASTM A123 / ISO 1461 as standard for outdoor exposure, and SS304 or SS316 stainless is available for washdown and corrosive areas. Galvanizing is already counted inside the 5–7 day sample and 15–25 day production windows.
Do you accept small orders of light duty grating?
Yes — small trial orders are welcome, any quantity. Panels are cut and banded to your drawings, with an itemized FOB Tianjin quote within 24 hours and free drawing review included.
Related pages
Related Grating Pages
Heavy-Duty Grating
The other end of the duty ladder — for wheels and heavy point loads.
View page →Lightweight Grating
Weight-first framing: reducing panel mass wherever it can be reduced.
View page →1 Inch Bar Grating
A recognized mid-range designation when light duty needs a step up.
View page →Grating Plain
Plain-surface specification for smooth-wheeled and dry routes.
View page →Pedestrian Grating
Heel-proof comfort spacing for public foot-traffic flooring.
View page →Walkway Grating
The application view — walkway duty mapped to panel choice.
View page →