Engineered Around Your Load & Span
Serrated Steel Grating
Serrated steel grating uses bearing bars with a toothed top edge that bites through water, oil and light ice films to give footwear a positive grip. It is the specified anti-slip option for outdoor walkways, oily platforms, ramps and stair treads — available in galvanized carbon steel, stainless steel and aluminum, fabricated to your drawings.
- Toothed bearing bars for proven slip resistance
- 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
What is serrated steel grating?
Serrated steel grating is welded bar grating whose bearing bars carry a notched, tooth-like top edge. The serrations cut through water, oil and light ice films so footwear makes contact with the bar itself, giving measurably better grip than a plain flat surface in slippery conditions.
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.
| Aspect | Plain surface | Serrated surface |
|---|---|---|
| Slip resistance | Standard — for dry, clean or indoor areas | Higher — teeth cut through water, oil and light ice films |
| 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 |
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.
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Industrial Platform Grating
Open-grid flooring for chemical plants, equipment platforms and mezzanines — strength, drainage and ventilation in one panel.
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Trench Covers & Drainage
Drainage covers that keep water moving and traffic safe — from pedestrian channels to truck crossings.
View applicationSpecifications
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 carbon steel, hot-dip galvanized
The standard anti-slip combination for outdoor industrial walkways, platforms and trench covers.
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.
Serration across materials
Serration is formed in the top edge of the bearing bar, so the tooth profile must be matched to both the material and the expected contamination. Carbon-steel teeth can be finished after fabrication; the inspection should confirm that the selected coating has not filled or softened the working edges. See the Galvanized Steel Grating page for coating requirements.
Stainless-steel serrations suit wet cleaning, chloride exposure or hygiene-controlled areas when the grade and post-fabrication treatment are confirmed together. Aluminum can provide a lighter serrated surface, but its profile and wear rate must be reviewed for the traffic, grit and maintenance cycle rather than treated as a direct substitute for steel.
- Carbon steel: preserve the specified tooth geometry through fabrication and finishing
- Stainless steel: select 304 or 316L from the exposure and cleaning regime, then passivate as specified
- Aluminum: confirm alloy, surface profile and allowable wear for the stated pedestrian or maintenance traffic
- Any material: use plain grating where the surface is dry and clean and serration adds no useful risk reduction
Fabrication & 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.
Gallery
Serrated Steel Grating in Detail
FAQ
Serrated Steel Grating FAQs
When should I choose serrated over plain grating?
Does serration reduce load capacity?
Is serrated grating more expensive?
Is serrated grating compulsory for outdoor use?
Can serrated grating be hot-dip galvanized?
What are the MOQ and lead time for serrated grating?
Can I mix plain and serrated grating in one project?
Send Your Drawings, Get a Confirmed Specification
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