Factory-direct steel gratings & stair treads, shipped worldwide
MBG 534 Grating
We produce grating to ANSI, NAAMM, EN and AS standards. Compliance docs on request.
Itemized quote within 24 hours · Free drawing review included
In-house weld & press lines
Electro-forging and press-locking under one roof
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
NAAMM MBG 534 explained
What MBG 534 Means for Stair Treads
NAAMM MBG 534 is the reference practice for metal bar grating stair treads in the ANSI / NAAMM metal bar grating manual. It sets the geometry, serration and edge details that specifiers rely on for industrial stairs — so when a drawing calls out NAAMM MBG 534 grating treads, these are the details it means. We explain the honest position here, and we produce to it.
What NAAMM MBG 534 is
MBG 534 is the section of the NAAMM metal bar grating manual that covers stair treads. It defines tread dimensions, bar spacing and edge treatment for grating stair treads used on industrial stairs and escape routes.
Scope — treads, not the panel line
MBG 534 governs the stair tread itself. The supporting panels around it follow standard-duty MBG 531 practice, and heavier cases follow NAAMM MBG 532 grating practice — so one stair project can reference all three sections.
Key points for procurement
Specify the tread size, serration and edge banding on your drawing. We produce to the MBG 534 reference practice, confirm we can make it, and ship DoC, MTC and test reports with the order.
Compliance table
MBG 534 Requirements vs Our Produce-to Position
We produce to standards — we do not claim certifications we do not hold. Here is how each NAAMM MBG 534 project requirement maps to our manufacturing position.
| Requirement | What it asks | Our produce-to position |
|---|---|---|
| NAAMM MBG 534 treads | Metal bar grating stair tread dimensions, serration and edges | Treads produced to the MBG 534 reference practice on our in-house lines |
| NAAMM MBG 532 heavy duty | Heavier panels and treads for heavier load cases | Thicker bearing bars and closer centers per MBG 532 practice |
| Load case per project | Live load and span given by the engineer | Bar size and spacing matched to the load case; load table issued with the quote |
| Hot-dip galvanizing | Corrosion protection for outdoor access | HDG to ASTM A123 / ISO 1461; coating thickness sampled per batch |
| Compliance documents | Traceable paperwork for the project file | DoC per ISO 17050 with every order; MTC EN 10204 Type 3.1 on request |
Not sure which combination your project needs? Send your drawings — we will spec it inside the 24-hour quote.
Load class options
Load Ratings Sit With the Tread
MBG 534 sets the tread geometry; the load rating comes from the bar size and spacing under the live load you give us. Tell us the span and the load — we match it and issue load tables with your quote.
| Duty | Typical live load | Our produce-to approach |
|---|---|---|
| Standard duty | Pedestrian and light maintenance loads | Treads per MBG 534 with bars 20×3 mm upward and standard pitch |
| Heavy duty | Forklift and wheel traffic on landings | Thicker bars and closer centers per MBG 532 practice |
| Per project | Live load and span given by the engineer | Load table and calculation sheet issued with your quote |
How we support you
Produce to the Standard, Documents in Hand
Confirm your standard combo
Tell us the standard and version — MBG 534 treads, MBG 532 heavy duty, A123 coating. We confirm we can produce to it and quote the full document set.
Test on request
Third-party sampling and testing arranged for the agreed batch before shipping — reports issued to the project file.
DoC + MTC with the order
Every order ships with a Declaration of Conformity per ISO 17050, an MTC to EN 10204 Type 3.1 and a factory inspection report.
FAQ
Frequently Asked Questions
Can you provide compliance and DoC documents with an MBG 534 grating order?
Yes. Every order ships with a Declaration of Conformity prepared per ISO 17050 for the destination market, an MTC to EN 10204 Type 3.1 and a factory inspection report. Test reports for the agreed batch are supplied on request.
What is the difference between producing to NAAMM MBG 534 and third-party certification?
Producing to a standard means panels and stair treads are manufactured and inspected to that standard's requirements. Certification is a separate third-party audit program. We state what we produce to and back it with documents and on-request testing — we do not claim certifications we do not hold.
What are your sample and production timelines?
Samples ship in 5–7 working days and mass production runs 15–25 working days after drawing confirmation, both including hot-dip galvanizing. Quote within 24 hours.
Factory-direct quote
Get a Factory Quote
Contact us for standard compliance support and a factory quote for your project.
- DoC per ISO 17050 and MTC EN 10204 3.1 with every order
- Third-party testing arranged on request for the agreed batch
- 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.
Related pages
Related Standards Pages
ANSI NAAMM MBG 531
The US reference practice for standard-duty grating panels.
View page →ANSI Grating Standards
The US standards landscape — NAAMM MBG 531, 532 and 534 in context.
View page →Stair Grating Treads
Treads, landings and platform grating from one factory.
View page →Bar Grating Treads
Bar grating stair treads with serrated or plain surfaces.
View page →OSHA Grating
Pedestrian safety requirements for grating access and platforms.
View page →AS 1657 Grating
Australian fixed-platform access practice for comparison.
View page →