Product Details

Product Description

galvanized ST1 Stair Treads (ST1-We are facture)

Recommended maximum stair treads length (mm)

Item	Recommended maximum stair treads length (mm)
Bearing bar dimension mm	25*3	25*5	32*5
Bearing bar’s pitch at 30 mm	550	900	1300
Bearing bar’s pitch at 40 mm	450	750	1200

Recommended stair treads width (mm)

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
T1/T2 Bearing bar pitch at 40mm T3/T4		115	155		195	235	275
Fixing hole center(mm)	45		75		100		150

Stair treads characteristics:

Type	Structural characteristics
T1	Used for welding installation, the end plates of both ends use the same flat steel as load flat steel to make edge band without nosing.
T2	Used for bolt installation, the end plates of both ends use 65*5 flat steel to encircle the edge, and open hole without, nosing .
T3	Used for welding installation, the end plates of both ends use the same flat steel as load flat steel to encircle the edge, with nosing.
T4	Used for bolt installation, the end plates of both ends use 65*5 flat steel to encircle the ends ,and open bole with nosing.

Packaging & Shipping

Our Services

we can provide CAD design for customers, as long as you can tell us your requirements.

Company Information

Hebei Jiuwang Metal Wire Mesh Co., Ltd, originally called Jintai Wire Mesh Co., Ltd, was founded in 1992, has been in this line for over 20 years, we are professional manufacturer of galvanized metal steel grating, and other galvanization products. Our galvanization is green and environmentally friendly, with no dust, and good quality. If you have need, pls contact me at annie.cao at or wechat/ what's app/ mobile +86 18602641007, skype: alian1224 . Thank you.

FAQ

1. What is the application of steel grating?

The main usage can be divided to 4 kinds: platform, flooring, stair treads and drainage cover.

See the above pic for reference.

2. what is the quantity of galvanization? And how long will it last?

We do our galvanization as American standard, for over 5mm thick steel grating, it is no less than

610g per square meter , for less than 5 mm thick steel grating, it is no less than 460g per square meter usually it is 60-80μ per square meter. And it can last at least 50 years.

3. Which standard can your products meet?

We can produce as customer's need. Here are most popular standard:

China: YB/T4001.1-2007

UK: BS4592-1-1995

USA: ANSI/NAAMM(MBG531-88)

Australia: AS1657-1985

4. Do you provide design?

Yes, we can provide CAD design for customers, as long as you can tell us your requirements.