| Model: | T1,T2,T3,T4,T5, |
|---|---|
| Brand: | JIUWANG |
| Origin: | Made In China |
| Category: | Construction & Decoration / Building Steel & Structure |
| Label: | stair treads , metal stair treads , outdoor stair treads |
| Price: |
US $25
/ pc
|
| Min. Order: | 100 pc |
| Last Online:30 Mar, 2023 |
There are normally 4 types(T1, T2, T3, T4) of stair treads. It’s divided by if there is nosing or fixed by welding.
T1 is stair tread without nosing and fixed by welding, T2 is stair tread without nosing and fixed by bolts. T3 is stair tread with nosing and fixed by welding. T4 is stair tread with nosing and fixed by bolts. The length and width can be made as customer’s need, then it can be adapted to different step ladder. We can also recommend sizes to customers.
Our company produces steel ladders with guardrail, which are made of grating treads. When specifying the steel ladders, pls refer to the national standard construction drawing 87J432. According to whether the nosings are to be used and the methods of mounting to stringers, stair treads are classified into four types: T1, T2, T3, T4. We s est that the dimensions are as follow:
|
Item |
Recommended stair treads width (mm) |
||||||
|
T1/T2/T3/T4 Bearing bar pitch at 30mm |
95 |
125 |
155 |
185 |
215 |
245 |
275 |
|
T1/T2 Bearing bar pitch at 40mm T3/T4 |
125 |
165 |
205 |
245 |
285 |
||
|
115 |
155 |
195 |
235 |
275 |
|||
|
Fixing hole center(mm) |
45 |
75 |
100 |
150 |
|||
