T1: Installed by Welding, without Nosing
Stair tread gratings, also named grating steps, are widely used as different types of steel ladders in the factory, school, park, stadium, civil and commercial buildings. It is mainly made by low carbon steel or stainless steel.
Features
Common Specifications
Popular Material:
stair treads can be made of any kind of steel grating. Can be divided into 4 basic groups:
The length and depth can be made as your need. Recommended specification below is for your reference.
Recommended Max. Stair Tread Length
Bearing Bar Section Steel Grating Specification |
25x3 | 25x5 | 32x5 |
---|---|---|---|
Bearing Bars at 30mm Pitch | 550 | 900 | 1300 |
Bearing Bars at 40mm Pitch | 450 | 750 | 1200 |
Recommended Stair Tread Depth
Bearing Bars at 30mm Pitch T1, T2, T3, T4 |
95 | 125 | 155 | 185 | 215 | 245 | 275 |
---|---|---|---|---|---|---|---|
Bearing Bars at 40mm Pitch T1, T2, T3, T4 |
125 | 165 | 205 | 245 | 285 | ||
115 | 155 | 195 | 235 | 275 | |||
Fixing Hole Centers mm | 45 | 75 | 100 | 150 |
Note: Bar gratings thickness is 5mm.
Packaging
Application
It is widely used in many architectural, commercial, and industrial applications, such as Factory School, Park, Stadium, Civil and commercial buildings and so on.