Serrated carbon steel, hot-dip galvanized
The standard anti-slip combination for outdoor industrial walkways, platforms and trench covers.
Engineered Around Your Load & Span
Serrated Steel Grating
Serrated steel grating uses bearing bars with a toothed top edge to add traction where wet, oily, snowy or inclined conditions are identified. Final suitability depends on contaminants, footwear, slope and the project requirement. It is available in galvanized carbon steel, stainless steel and aluminum and fabricated to your drawings.
- Serrated surface for added traction
- For wet, oily, snowy or inclined walking surfaces
- Same load principle as plain grating — sized by span and load
- Hot-dip galvanized, stainless or mill finish options
Anti-slip surface For wet & oily areas Plain vs serrated guidance Galvanized or stainless
What is serrated steel grating?
Serrated steel grating is welded bar grating whose bearing bars carry a notched, tooth-like top edge. Those edges can add traction compared with a plain flat surface, but no universal slip-resistance result is claimed: performance depends on contaminants, footwear, slope, maintenance and the project requirement.
It is specified wherever slip risk is elevated: outdoor walkways exposed to rain and snow, process plant platforms with oil or chemical films, inclined ramps, and stair tread nosings. Because the teeth remove a small amount of bar material, the effective section is slightly reduced — load capacity is confirmed against span, load type and support conditions during specification, exactly as with plain grating.
Plain surface
Serrated surface
| Aspect | Plain surface | Serrated surface |
|---|---|---|
| Surface traction | Plain top for dry, clean or indoor areas | Additional edges for wet, oily or inclined conditions; verify project suitability |
| Typical locations | Indoor platforms, dry walkways, architectural areas | Outdoor walkways, oily process platforms, ramps, stair treads |
| Cleaning | Easiest to wash down | Slightly more effort around the teeth |
| Cost | Most economical | Premium over plain bars of the same size |
| Load capacity | Full bar section | Slightly reduced effective section — confirmed against span and load |
Gallery
Serrated Steel Grating in Detail
Specifications
Specification Options
| Item | Options | Notes |
|---|---|---|
| Material | Carbon steel Q235 / Q355; SS304 / SS316L; aluminum | Supplied per project specification with MTC |
| Bearing bar size | 25 × 3 mm to 100 × 10 mm; common 25×3, 30×3, 32×5, 40×5 mm | Deeper bars for longer spans |
| Bearing bar spacing | 30 / 40 mm; imperial 19-space, 15-space series | 30 mm most common |
| Cross bar | Twisted square bar at 50 / 100 mm (2″ / 4″) | 100 mm most economical |
| Surface | Full-serrated bearing bars | Serration rolled into the bar before welding |
| Finish | Hot-dip galvanized / passivated stainless / mill | Galvanized after fabrication per ASTM A123 / ISO 1461 or customer standard |
| Max panel size | Up to 6100 × 1000/1200 mm; 70–100 kg per panel handling limit | Larger areas split into numbered panels |
Variants
Recommended Types
Serrated stainless steel
SS304 or SS316L serrated grating for wet process, food, chemical and marine areas that need both grip and corrosion resistance.
Serrated stair treads
Serrated grating treads with abrasive or checkered nosing and end plates, ready to bolt or weld to stringers.
Serrated heavy-duty grating
Toothed heavy bearing bars for vehicle areas where surfaces are wet or oily — capacity confirmed against span, wheel load and support conditions.
Applications
Where Serrated Steel Grating Is Used
Walkway & Catwalk Grating
Safe, drained, ventilated walkways for photovoltaic arrays, pipe racks, tank farms and roof access routes.
View application
Stair Tread Grating
Industrial access stairs with grating treads — drained, slip-resistant and replaceable tread by tread.
View application
Industrial Platform Grating
Open-grid flooring for chemical plants, equipment platforms and mezzanines — strength, drainage and ventilation in one panel.
View application
Trench Covers & Drainage
Drainage covers that keep water moving and traffic safe — from pedestrian channels to truck crossings.
View applicationFabrication & QC
Fabrication & Quality Notes
- Serration is rolled into the bearing bar before welding; tooth profile is checked on incoming material.
- Serrated panels are welded, cut and banded to the same drawings and tolerances as plain grating.
- Load checks account for the reduced effective section of serrated bars at the confirmed span.
- Galvanizing follows fabrication so teeth, welds and cut edges are fully coated.
Packaging
Packaging & Delivery
- Serrated panels bundled with spacers to protect tooth edges in transit.
- Numbered and packed to layout drawings for platform and walkway projects.
- Galvanized bundles ventilated to reduce wet-storage staining during sea freight.
FAQ
Serrated Steel Grating FAQs
When should I choose serrated over plain grating?
Choose serrated for outdoor, wet, oily, snowy or inclined walking surfaces and for stair treads. For dry indoor platforms, plain grating is more economical and easier to clean.
Does serration reduce load capacity?
Serration slightly reduces the effective bar section; load capacity is confirmed against span, load type and support conditions during specification — tell us your requirements and we will size the bars accordingly.
Is serrated grating more expensive?
Yes, serrated bearing bars carry a cost premium over plain bars of the same size. We help you apply serration only where slip risk justifies it.
Is serrated grating compulsory for outdoor use?
Not compulsory, but strongly recommended for outdoor walkways, ramps and stairs exposed to rain, snow or oil — and many project specifications require it there. Send your specification and we will match it.
Can serrated grating be hot-dip galvanized?
Yes. Panels are fully welded and fabricated first, then galvanized so the teeth, welds and cut edges are coated. The applicable ASTM A123/A123M, ISO 1461 or project requirements and reporting scope are agreed for the order.
What are the MOQ and lead time for serrated grating?
Standard serrated specifications start around 10–20 m²; custom sizes around 50 m². Typical lead time is 15–25 days, with samples of standard specifications in 3–7 days.
Can I mix plain and serrated grating in one project?
Yes. Many projects use serrated only on stairs, ramps and exposed edges, and plain grating elsewhere to control cost. We detail both from the same layout drawings.
Send Your Drawings, Get a Confirmed Specification
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