Product Description

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 suggest 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

 

 

 

 

 

 

 

Payment Terms︰ T/T,L/C

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