Bar Grating

* Material: Low carbon steel, stainless steel

* Surface treatment: Hot dipped galvanized, painting

* Common sizes as follow:

G303/30/100  G255/30/100  G305/30/100  G505/30/100 G203/30/50 G205/30/100  G255/30/50   G303/30/30 G808/30/100  G605/30/100 



Bar Grating consists of a series of bearing bars cross jointed by welding at various intervals with crossbars (twisted square bars, square bars, round bars, flat bars, etc.), to form a kind of steel products with square lattices among them. 

Steel Gatings are designed and manufactured by pressure-welded steel gratings and are widely used in various industrial civil buildings such as urban roads, squares, gardens, docks, airports, parking lots, highways, railways, and industrial engineering.

Material: Low carbon steel, stainless steel

Surface treatment: Hot dipped galvanized, painting

Common sizes as follow:

G303/30/100  G255/30/100  G305/30/100  G505/30/100 G203/30/50 G205/30/100  G255/30/50   G303/30/30 G808/30/100  G605/30/100 

Bar Grating

Bar Grating Application:

  • Industrial platform flooring 

  • walkway

  • traffic

  • steel structure

  • drain covers

  • steelwork platform panels

  • steel stair treads

Bar Grating Features: 

1. Beautiful appearance: simple lines

2. The best drainage: the leakage area is 83.3%, which is more than twice that of cast iron.

3. Hot-dip galvanized: strong anti-rust, maintenance-free and replacement.

4. Anti-theft design: The cover and frame are hinged, which is anti-theft, safe and easy to open.

5, Save investment: long span, under heavy load, the price is lower than cast iron and save the cost of theft or crash replacement.

6, High strength: strength and toughness are much higher than cast iron, can be used in terminals, airports and other large spans and heavy load environments.

7. Many specifications: meet the requirements of different environments, loads, spans, sizes and shapes

Bar Grating

Bar Grating specifications :


Steel,Low carbon steel,stainless steel &(Q235,A36,SS304,SS316L,S235JR)

Surface treatment

Black, hot-dipped galvanized, paint

Bearing bar width*thickness


Bearing bar pitch

12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3, 34.3, 35, 40, 41, 60mm. US  Standard: 1"x3/16", 1 1/4"x3/16", 1 1/2"x3/16",  1"x 1/4", 1 1/4"x 1/4", 1 1/2"x 1/4" etc.

Bearing bar shape

Plain Style Steel Grating, Serrated Style Steel Grating and I Bar Type Steel Grating.

Drainage steel grating cover drainage ditch standard

China: YB/T 4001.1-2007, USA: ANSI/NAAMM(MBG531-88), UK: BS4592-1987, Australia: AS1657-1985,  Japan: JJS.

Cross bar shape

round,twisted,bar shape

Cross bar pitch


Galvanizing standard

US: ASTM (A123), CN: GB/T13912, UK: BS729

Market distribution

America45%,Europe26%,Middle east38%,Other place27%

More detail, welcome to send inquiry.