Factory-direct steel gratings & stair treads, shipped worldwide
Grating Standards & Compliance
ANSI/NAAMM, EN, BS and AS standards for steel grating — explained market by market, and how we produce to them.
Produced to recognized standards, supported by test reports — itemized quote within 24 hours
Produced to standard
ANSI/NAAMM MBG 531 referenced practice
Certified & tested
Reports on request, MTC with every order
Samples in 5–7 days
Production in 15–25 working days
Quote in 24 hours
Send drawings — we confirm compliance options
Market comparison
Which Standard Applies in Your Market?
Four markets, four sets of documents. Here is what each one asks for — and the honest wording for what we do: we produce to the standard, then back production with documents you can verify.
United States
- ANSI/NAAMM MBG 531-24 — the technical specification for metal bar grating
- ANSI/NAAMM MBG 532-24 — heavy-duty grating practice
- OSHA 29 CFR 1910.24(c) — stair tread requirements
Industry standards widely cited in US project specifications; the OSHA rules are regulatory.
We produce grating to ANSI/NAAMM referenced practice — test reports and an order-level Declaration of Conformity on request.
European Union
- EN 1090-1 — CE marking of structural steel, mandatory for structural applications
- EN 124 — gully and trench cover load classes such as C250 and D400
Regulatory for structural applications; EN 124 classes are the common purchasing language for drainage covers.
We produce to EN requirements per project spec — ask about current EN 1090-1 status in your quote. Compliance documents on request.
United Kingdom
- BS 4592 series — steel gratings specification
- EN 1090 / UKCA — applies to structural steelwork
Industry standard still widely specified by UK engineers for gratings and treads.
Produced to BS 4592 on request — supported by test reports for the panels we ship.
Australia
- AS 1657:2018 — fixed platforms, walkways, stairways and ladders
- AS 1170.1 — permanent design actions (loads)
- AS 3996:2019 — access covers and grates, heavy duty
Industry standards widely required in Australian engineering procurement.
Produced to AS 1657 per project — an order-level Declaration of Conformity is available (prior project precedent).
Not every market requires formal certification. Where a standard is referenced in your specification, we produce to it and support compliance with test reports and order-level declarations.
Standards directory
13 Standards Pages, Grouped by Market
One page per standard: what the designation covers, how it is usually referenced — and how we produce to it when your spec calls for it.
United States · 8 pages
ANSI/NAAMM MBG 531-88
The classic MBG 531-88 designation — and how it maps to the current MBG 531-24 practice we produce to.
Read the guide →MBG 534 Grating
NAAMM MBG 534 stair tread practice — tread dimensions, nosing and end plates.
Read the guide →OSHA Grating
OSHA rules for grating walkways and stairs — 29 CFR 1910.24(c) tread requirements explained.
Read the guide →AASHTO Grating
AASHTO-referenced loading for highway, bridge and drainage gratings.
Read the guide →ADA Bar Grating
Bar grating for accessible routes — opening limits, surface criteria and heel-safe spacing.
Read the guide →ADA Compliant Grating
What ADA-compliant grating means in practice — rollability, openings and flush surfaces.
Read the guide →A325 Grating
The A325 term in grating inquiries explained — heavy structural practice, produced to your drawings.
Read the guide →ANSI Grating Standards
The ANSI grating standards landscape — which documents govern what in a specification.
Read the guide →European Union · 1 page
United Kingdom · 1 page
Australia · 2 pages
AS 1657 Grating
AS 1657:2018 fixed platforms, walkways and stairs — the key Australian design reference.
Read the guide →AS 1428 Compliant Grating
AS 1428 accessibility criteria for grating in Australian facilities — openings and slip surfaces.
Read the guide →General · 1 page
Documents we provide
What We Can Provide With Your Order
This page explains what standards mean and where they apply. The documents we can actually hand you — order by order — are:
Production to recognized standards
Panels produced to the standards your specification references — ANSI/NAAMM, EN, BS or AS.
Declaration of Conformity
Order-level DoC prepared per ISO 17050, matched to your destination market.
Mill test certificate
EN 10204 Type 3.1 MTC for every heat of Q235B, SS304 or SS316 used.
Final inspection report
Factory inspection and dimensional check with every shipment.
View certifications — the documents behind these claims → · Load tables & specification guides →
Specifying to a standard
Specifying to a Standard? Send Your Drawings
Send your drawing
Panel sizes, loads and the standard your spec references — or just photos and a sketch. Drawing review is free.
Quote within 24 hours
Itemized, FOB Tianjin as standard — with compliance options confirmed in writing for your market.
Samples in 5–7 days, production in 15–25
Working days after drawing confirmation, hot-dip galvanizing included. Documentation travels with the order.
Factory-direct quote
Specifying to a Standard? Get a Factory Quote
Send your drawings and the standard your project references — we confirm compliance options within 24 hours, in writing.
- Five-stage QC, from MTC verification at goods-in to final inspection
- 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
Standards & Documentation Questions
Do you provide test documents with your grating orders?
Yes. Every order ships with a mill test certificate to EN 10204 Type 3.1 for the steel used, a factory inspection report, and a Declaration of Conformity prepared per order destination. Reports are available on request — we show documents you can verify.
Can you produce grating to ANSI/NAAMM MBG 531?
Yes — welded panels are produced to ANSI/NAAMM MBG 531-24 referenced practice, with weld inspection built into our five-stage QC plan. Production is supported by test reports and an order-level Declaration of Conformity rather than third-party certification claims.
What is your EN 1090-1 status for EU orders?
EN 1090-1 CE marking is mandatory in the EU for structural steel applications. Our status is confirmed per project — ask about current EN 1090-1 status in your quote, and we will state in writing exactly what applies to your order.
Related pages
Where to Go Next
Certifications & Test Reports
The order-level documents: DoC, MTC EN 10204 3.1, inspection reports.
View page →Technical Resources
Load tables, weight charts and specification guides.
View page →Guides & FAQ
Buying and technical questions answered in depth.
View page →Custom Made Grating
Drawing-to-panel path with free drawing review.
View page →Applications Hub
Walkway, drainage and stair tread application pages.
View page →Products Hub
All product pages grouped in nine sections.
View page →