Stair Treads with Anti-Slip Nosing Steel Bar Grating Building Material Steel Stair Steel Ladder Steel Treads Steel Steps

 
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:

Stair treads' max length:

Bearing bar specification 25*3 25*5 32*5

Bearing bar pitch at 30 mm 550 900 1300

Bearing bar pitch at 40 mm 450 750 1200


1.   steel stair treads grating
We manufacture different styles of stair ladders that used in family,industry and construction. 
Material: mill steel black and hot dip Galvanizing / and stainless grating
Usage: ladder, flooring walkway, platform ,steel structures, stair tread, well cover, trench cover, sump cover,compound gratings, storage shelves,fences and handrail so on for construction project, oil project, seaport, power plant, water plant, defense project, chemical factory and so on.
 

1)There are four kinds of stair treads T1,T2,T3,T4.
    T1         Welded fixing and Without nosing
    T2         Bolted fixing and without nosing,easy to installation and teardown.
    T3         Welded fixing and with checkered plate nosing, can be skid.
    T4         Bolted fxing and with checkered plate nosing, easy be installation,
                 teardown and can be skid.

2) Material: Mild Steel (Low Carbon Steel) or Stainless Steel
3) Surface Treatment: 
Untreated, Painting ,Powder coated or Hot dip Galvanizing
4) Steel grating standards: 
A) China: YB/T4001-1998 
B) USA: ANSI/NAAMM (MBG531-88) 
C) UK: BS4592-1987 
D) Australia: AS1657-1988 
E) Japan: JJS
 
3. steel stair treads grating steel stair treads grating specification
 
Max. Stair treads lengths
 
 
Recommend stair tread widths
 
 
Note:bearing bar thickness 5mm
 

how to contact us?
 

This is Dora from Hebei Jiuwang Metal Wire Mesh Co.,LTD--Professional Steel grating manufacturer!

1.Own independent three press-welded steel grating machine and we have our own biggest galvanization product line in local market for 20 years experience.
2.profession design and drawing teams customize based on customers'requirement 

3.ISO9001 Certificate 

4.Located in Anping wire mesh base Hebei province,near from Beijing airport,Tianjin sea Port! 5.Now we adopted automatic bending machine,automatic robot welding machine,the grating quality get more perfect and price more competitive!