Steel Grating Stair
2. Checkered plate nosing, Welded fixing anti-slip
3. Without nosing, Bolted fixing
4. Without nosing, Welded fixing
Main type
Steel Grating Stairs for Power Plants/Sewage Treatment Plants/Chemical Plants (For high anti slip requirements, toothed steel grating is often used)
Steel Grating Stairs for docks, ports, ships, and outdoor fire staircases (heavily corroded by seawater, often made of reinforced stainless steel)

Advantage
Galvanized steel grating stair tread with anti-slip serrated surface, high load bearing, good corrosion resistance, widely used for industrial outdoor stairs and fire escape steps.

Stair Treads are available in these materials
Flat steel thickness 3mm, 4mm, 5mm
Flat steel spacing 30mm, 40mm (mainstream)
Horizontal bar spacing 50mm, 100mm
Step width 600mm -1200mm (commonly 800-1000mm)
The step length is customized according to the span of the staircase, commonly ranging from 1-3 meters
Surface treatment: hot-dip galvanizing (most common), painting, stainless steel
Note: Common models such as G255/30/100C, G305/30/100C
Installation method classification (T-shaped number)
T1 type: welded installation, no front guard plate, economical and durable.
T2 type: fixed with bolts, without front guard plate, easy to disassemble.
T3 type: welded installation, with 3mm bent front guard plate, better anti slip.
T4 type: fixed with bolts, equipped with a front guard plate, balancing safety and disassembly.

Products Description

The tables below indicate the maximum width and length for stair treads, depending on the combination of material, pattern and load bar selected. Standard stair treads are available ex-stock from Webforge locations; these standard profiles are complimented by a custom manufacturing service.

Max. Stair treads lengths
|
Steel grating specification |
25*3 |
25*5 |
32*5 |
|
Bearing bar pitch30mm |
550 |
900 |
1300 |
|
Bearing bar pitch 40mm |
450 |
750 |
1200 |
Recommend stair tread widths
|
T1,T2,T3,T4 |
95 |
125 |
155 |
185 |
215 |
245 |
275 |
|
T1,T2,T3,T4 |
|
125 |
165 |
|
205 |
245 |
285 |
|
|
115 |
155 |
|
195 |
235 |
275 |
|
|
Fixing hole centers |
45 |
75 |
100 |
150 |
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