outdoor industrial checker plate nosing stair treads T3/T4

outdoor industrial checker plate nosing stair treads T3/T4

Model No.︰T1,T2,T3,T4,T5,

Brand Name︰JIUWANG

Country of Origin︰China

Unit Price︰US $ 25 / pc

Minimum Order︰100 pc

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Product Description

There are normally 4 types(T1, T2, T3, T4) of stair treads. Its 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 customers 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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