1. Perforated metal stair steps Brief Introduction
Perforated metal stair steps are constructed using an open steel
grating from the flooring range with a nosing bar / sight bar
welded to the front edge and drilled end plates to allow for
bolting to stair stringers.
According to whether the nosing to be used and methods of mounting
to stringers, grating treads are classified into 10 types,
expressed as T1, T2, T3, T4, T5, T6, T7, T8, T9, T10.
| Stair Tread Types | Nosing Types | Fixing Types | Ends |
| T1 | without | welded | Banded ends |
| T2 | without | bolted | Holed end plates |
| T3 | checkered plate nosing | welded | Banded ends |
| T4 | checkered plate nosing | bolted | Holed end plates |
| T5 | yellow abrasive nosing | welded | Banded ends |
| T6 | yellow abrasive nosing | bolted | Holed end plates |
| T7 | perforated nosing | welded | Banded ends |
| T8 | perforated nosing | bolted | Holed end plates |
| T9 | anti-slip strip nosing | welded | Banded ends |
| T10 | anti-slip strip nosing | bolted | Holed end plates |
Nowadays, the most frequently used types are T1, T2, T3, T4, T5,
T6, as belowing:
It is steel bar according to a certain distance and cross arranged
and welded into the middle of a square latice with an iron and
steel products . It is mainly used on the industrial platform ,
flooring , drainge cover , well cover , oil platform , stair tread
etc.
2. Perforated metal stair steps Surface Treatment
Hot Dip Galvanization as per EN ISO1461/ ASTM A123
3. Perforated metal stair steps Application
Perforated metal stair steps are widely used in various fields, such as onshore & offshore
projects, machinery, oil & gas projects, mining proejcts,
infrastructural proejcts, etc. We can offer complete steel ladders
with guardrail, which are made of grating stair treads.
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