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Industrial Grade Galvanized Steel Stair Treads with Non-Slip Nosing and Hot-Dip Galvanized Finish

Place of Origin:China
Brand Name:GNEE
Certification:SGS
Model Number:Steel Grating
Minimum Order Quantity:1 Pieces
Price:US$20.00-100.00 (FOB Price)
Product Details
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Non-Slip Nosing Galvanized Steel Stair Treads

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Hot-Dip Galvanized Steel Grating Stair Treads

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Industrial Grade Steel Stair Treads
Product Description
Galvanized Steel Stair Treads for Industrial Stairs Non-Slip Nosing
Galvanized steel stair treads are the standard tread for industrial stairs, escape stairs, tank ladders and outdoor fire stairs because they are tough, slip-resistant and survive outdoor and wash-down environments for decades without repainting.
What a Galvanized Steel Stair Tread Is
A galvanized stair tread is a single panel of galvanized steel grating cut to stair-tread shape, normally with banded ends and a nosing bar at the front edge. The grating panel is hot-dip galvanized after fabrication per ASTM A123 / ISO 1461, giving the same 20-50+ year service life as our platform grating.
Standard Stair Tread Families
Type Construction Typical Use
Grating tread with checker-plate nosing Welded bearing bars + 3-5 mm checker plate nosing Industrial stairs, public stairs
Grating tread with abrasive nosing strip Welded bars + silicon carbide or aluminum-oxide strip Oil platforms, chemical plants, wash-down
Serrated grating tread All-serrated bearing bars Outdoor, wet, oily stairs
Pre-galvanized fabricated tread Light-duty for mezzanine stairs Offices, warehouses
Standard Sizes and Code Reference
Item Common Value
Tread width 215 mm (light duty) - 305 mm (industrial, OSHA 1910.29)
Tread length 600 / 800 / 900 / 1 000 mm (cut to actual stair run)
Bearing bar size 25 × 3 to 32 × 5 mm (light duty) / 32 × 5 to 40 × 5 mm (industrial)
Mesh 30 × 100 or 40 × 100
Nosing depth 25 - 50 mm projection beyond the front bearing bar
Load per tread ≥ 1.0 kN/m² UDL per EN 1991-1-1 category C2 (stairs), and a 1.5 kN concentrated load on the nosing per OSHA 1910.29(b)(2)
Stair angle 30°-38° (typical industrial); 30°-45° per OSHA 1910.29(c)
Verify Before You Specify
If your stair is in a regulated facility -- public building, oil & gas, food plant -- confirm these directly:
  1. OSHA 1910.29(b) -- stairs must support a 1.5 kN concentrated load at the nosing and 1.0 kPa UDL elsewhere.
  2. EN ISO 14122-3 -- industrial stair geometry, load 1.5 kN concentrated / 2.0 kN/m² UDL on the tread.
  3. AS 1657 -- Australian fixed-platform, walkway and stair code.
We will match the certification you require.
Nosing Options -- and Why the Nosing Matters
The nosing is what your foot actually hits first on every step, so it controls both slip safety and visibility. We supply three factory-built options:
Checker-Plate Nosing
A 3-5 mm hot-rolled checker plate welded to the front bearing bar. The raised pattern gives reliable grip, the plate covers the cut end of the bearing bars and gives the tread a hard leading edge that resists damage. Standard for industrial stairs and most public applications.
Abrasive Strip Nosing
A silicon-carbide or aluminum-oxide abrasive strip cast into a profiled aluminum or PVC carrier, mechanically fixed or bonded to the nosing. Highest slip resistance even when oily. Specified for offshore, marine and chemical plants.
All-Serrated Tread
The whole top of the bearing bars is serrated -- the most economical anti-slip option for outdoor and wash-down stairs. Slightly reduced section (≈ 5 %) versus a plain bar, but adequate for typical industrial loads because we adjust the recommended bearing bar by one step up.
End Configurations and Carrier Bolts
Treads are usually bolted to the stringer with end plates and M12 / M16 carrier bolts, so the tread can be lifted out individually. Specify one of the standard end shapes:
  • Open end (no banding, bolt holes drilled in side bar) -- the lowest-cost, lightest-weight option.
  • Band-end with end plate -- the standard industrial option. A flat bar is welded to the end of the panel, and a same-size plate is welded on top with two bolt holes for the carrier bolt. The bolt is hidden under the nosing for a clean visual.
  • Clip-lock end -- special profile for stair tread clip-on systems that allow tool-free removal for cleaning.
For outdoor escape stairs we also supply a kick plate (toe board) welded to the back of each tread, 100 mm high per OSHA 1910.29(k).
How to Specify Your Stair Tread
For a fast quote, send us:
  1. Width and length of one tread (mm)
  2. Bearing bar size and mesh (e.g., 32 × 5 @ 30 × 100) or load class required
  3. Nosing type (checker plate / abrasive strip / all serrated) and projection (25 / 30 / 50 mm)
  4. End configuration (band-end plate / open end / clip-lock)
  5. Carrier bolt centre-to-centre spacing and bolt size
  6. Quantity and delivery port
We will return a quotation, fixing-hole drawing and current lead time within 24 hours. All treads are hot-dip galvanized per ASTM A123 / ISO 1461, packed in bundles and exported in containers.
Product Summary

Galvanized steel stair treads are tough, slip-resistant, and survive outdoor and wash-down environments for decades without repainting. They feature banded ends, a nosing bar, and are hot-dip galvanized per ASTM A123/ISO 1461 for 20-50+ year service life. Available with checker-plate, abrasive strip, or all-serrated nosing options for various industrial applications.

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