1. Metal stair tread Brief Introduction

Metal stair tread 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. 

Nowadays, the most frequently used types are T1, T2, T3, T4, T5, T6, as belowing:

2. Metal stair tread Surface Treatment

Hot Dip Galvanization as per EN ISO1461/ ASTM A123

3. Metal stair tread Application

Stair steps with nose 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. 

4. Metal stair tread Types

Type T3 and T4 stair treads are with chequer nosing, the advantage of T3 and T4 chequer plate stair treads is easy for production as well as low cost, The difference between T13 chequer plate stair treads and T4  chequer plate stair treads is the mounted methods, T3 type is mounted by welding directly and T4 type is mounted by bolts, so T3 type stair tread is closed by banding bar which is usually same as  bearing bars while T4 type stair tread is closed by end plates with mounted holes.