Factory-direct steel gratings & stair treads, shipped worldwide
4x8 Steel Grating
4x8 steel grating panels, welded and hot-dip galvanized.
Itemized quote within 24 hours · Free drawing review included
In-house weld & press lines
Mill-made 4×8 sheets formed in one pass
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
Panel format
Full 4×8 Sheets vs Cut-to-Size Panels
A 4×8 sheet measures 4 ft × 8 ft — about 1.22 m × 2.44 m, just under 3 m² of floor. The 1.22 m direction sits comfortably inside our 1.25 m maximum panel width, and 2.44 m is far short of the 6 m maximum length, so every 4x8 steel grating sheet leaves the mill as one solid panel, never seamed from strips. The real decision is what happens next: ship full sheets and trim on site, or have us cut and band finished panels first.
| Dimension | Full 4×8 Sheets | Cut-to-Size Panels | Custom Panel Sizes |
|---|---|---|---|
| What arrives | One 1.22 × 2.44 m panel per sheet, no field seams | Smaller panels nested from full 4×8 sheets | Panels built straight to drawing dimensions |
| Ordering math | 32 sq ft (≈3 m²) per sheet — order by sheet count | Order by finished opening sizes; we plan the nest | Order by drawing; free review inside the 24-hour quote |
| Cut waste | Offcuts stay with you for reuse on site | Offcuts stay at the mill — you pay for shipped panels | Near zero — every panel comes at final size |
| Edge treatment | Band-bar ends optional; mill edges as welded | Every saw-cut edge banded before galvanizing | Banding, notches and end plates per drawing |
| Best for | Layouts that run on 4 ft modules, stock replenishment | Mixed opening sizes, trench runs, repair work | New-build platforms and mezzanines with drawings |
| Site handling | Full sheets are heavy — plan lifting and cutting tools | Lighter, numbered pieces — fastest install | Bolt-down per the fixing layout we supply |
Not sure which route fits your job? Send your drawings — we will spec it inside the 24-hour quote.
How a 4×8 order runs
From Bare Sheet to Loaded 4×8 Panels
1 · One solid sheet
Bearing bars run the 8 ft (2.44 m) direction so each 4x8 steel grating sheet spans your supports in one piece. A 19W4-class sheet — about 30 mm bar centers — carries roughly 40 bearing bars across its 4 ft face.
2 · Cut & banded
Cut lines come from your drawing, not a stock chart — so panel seams land exactly on your supports, and every saw-cut edge is banded before galvanizing. Send support spacing with the quote request.
3 · Packed for export
Because 4×8 panels are flat rectangles of one size, they stack cleanly, steel-strapped on export pallets. The loading plan — sheets per layer, pallet or loose — is calculated per order, and the mill sits about 400 km from Tianjin Port.
Why order 4×8 from the mill
Why Buyers Order 4x8 Steel Grating Panels Factory-Direct
Mill made, not traded
4x8 steel grating panels are formed on our own electro-forging line — bearing bars and cross bars pressure-welded in one pass. One factory, one QC trail, one point of contact for your sheet order.
Any quantity, cut or full
Full 4×8 sheets by the pallet or a handful of repair panels — small trial orders are welcome, and every cut piece comes banded to size from your drawing.
Galvanized to ASTM A123
4×8 sheets go out black or hot-dip galvanized to ASTM A123 / ISO 1461 practice, with coating thickness checked by sampling. Certified & tested — reports on request.
Applications
Where 4×8 Panels Earn Their Keep
The 4×8 format is the workhorse sheet size: wide enough to floor a bay in one piece, compact enough for two people and a crane hook to place.
Platforms & mezzanines
Sheets laid on 4 ft module framing — open mesh floors that shed water and let light through.
Walkways & catwalks
Cut-to-width strips from full sheets, banded edges facing the travel path.
Trench & pit covers
One 4×8 sheet nests several trench covers — cut to run length, banded and galvanized.
Docks & ramp landings
Heavy-bar 4×8 sheets for wheel loads at loading docks, ramps and truck aprons.
Specifications
4x8 Steel Grating Specifications
| Parameter | Range |
|---|---|
| Panel format | 4 ft × 8 ft — about 1.22 m × 2.44 m per sheet |
| Bearing bar | 20×3 mm to 100×8 mm, plain or serrated |
| Bar spacing | 30 / 40 / 60 mm centers (19W4-class ≈ 30 mm) |
| Cross bar | Twisted square or round, per specification |
| Panel maximums | Up to 1.25 m wide × 6 m long |
| Materials | Q235B carbon steel · SS304 / SS316 stainless |
| Surface | Black or hot-dip galvanized (ASTM A123 / ISO 1461) |
| Weight & load tables | Calculated per bar size — 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. 4×8 sheets leave with documentation, not promises:
- 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
4×8 welded sheets 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 4×8 panels are released.
CE & SGS tested
Certified & tested, reports on request — we show documents you can verify, not a certificate wall.
Custom made
Ordering 4×8 Panels, Cut and Banded to Your Drawings
Send your panel schedule
Full 4×8 sheet count, or opening sizes with support spacing — or just photos and a sketch. Drawing review is free.
Quote within 24 hours
Itemized per sheet or per cut panel, 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
Request 4x8 steel grating specs and pricing — send your sheet count or cut list and a reply lands within 24 hours, free drawing review included.
- 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
Frequently Asked Questions
What size is a 4x8 steel grating panel in metric?
A 4 ft × 8 ft sheet measures about 1.22 m × 2.44 m — just under 3 m² (32 sq ft) of floor per panel. The 1.22 m direction sits inside our 1.25 m maximum panel width, so every 4x8 steel grating sheet is produced as one solid panel, never built up from narrower strips.
Should I order full 4x8 sheets or cut-to-size panels?
Order full sheets when your layout runs on 4 ft modules and you can trim on site; order cut-to-size panels when openings vary — we nest the cuts from full sheets and band every cut edge. Either way, plan panel seams to land on supports and tell us your support spacing in the quote request.
How do 4x8 grating panels ship, and what do they cost?
Panels are stacked flat, steel-strapped on export pallets and shipped worldwide from Tianjin Port, about 400 km from the mill — FOB Tianjin as standard, EXW or CIF negotiable. Container loading is calculated per order and pricing is itemized per m² or per ton in your quote; we do not publish a fixed price list.
Related pages
Related Specification Pages
Grating Panel Dimensions
Every panel format we build — from 4×8 sheets up to 6 m lengths.
View page →Galvanized Steel Grating Standard Sizes
Standard sizes with the hot-dip galvanized finish already included.
View page →Bar Grating Panel
The single-panel unit — construction, banding and handling.
View page →19W4 Steel Grating
The US designation behind the 30 mm bar centers on a 4×8 sheet.
View page →Bearing Bar Grating
Bar heights and thicknesses that set panel weight and load.
View page →Grating Load Table
How span direction and bar size drive the load a sheet carries.
View page →