A. Grating Stair treads Reference:

B. In case of no understanding, detailed drawing is as follows:

C. Hey, if you do not understand the above table for stair tread, do not worry about it !

     I am sure you will make it clear after to check the following items below:

1).See the above drawing, please find the “ Bearing Bar ” and “Cross Bar “, you find them easily and make clear of        there two main frame in the steel grating, right?      

2).You find the table of “G 325/30/100” right? Well,

     G is for the grating standard, which refers to “Chinese national standard.”

     32 is 32mm ,which is for the “width or call it height of the Bearing Bar”

     5 is also 5mm,which is for the “Thickness of Bearing Bar”

     30 is 30 mm, which refers to “Bearing Bar Pitch”

    100 is for the “Cross Bar Pitch”

3).Besides, you also find that there are “600,700,800,900,1000 “ right?

    Well, I think it is more easy for you to understand. It is the outside specification for one piece of

     the grating. And they refer to the Length of the grating.

4).Certainly, you will guess that 305,275… is the Width of the grating. Yes,you are right!

5).Then how about the Blue characters of “Yes” ?Some blank have “Yes” and some have not.

     Well take the first line as an example, it could be 305 x 800, 305x 900 and 305 x 1000 ,but could not possible for       305 x 600 or 305 x 700.

Well, I think that you could understand the specification for the grating stair tread.

And after you make it clear of the specification, you can choose the type of the stair tread you are in need of.

In general, people will need ST1 to ST4. ST5 and ST6 are used less.

Whatever, you can choose from the above specification, we also accept special customization.

OK, please let me know the grating specification in G xxx/xx/xx ,xxx (W) x xxx (L)

And type of stair treads.

Thank you for your co-operation and feedback to me.