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metal grate stair treads

Low Carbon Steel Metal Grate Stair Treads For Architecture / Industrial

  • Low Carbon Steel Metal Grate Stair Treads For Architecture / Industrial
  • Low Carbon Steel Metal Grate Stair Treads For Architecture / Industrial
Product Details:

T6 Galvanized Bar Grating Safety Steel Stair Treads with Yellow Nonskid Nosings

Product Description

Product name:

T6 galvanized bar grating safety steel stair treads with yellow nonskid nosings

Product details:

T6 steel stair treads by pressure welding are available in low carbon steel.

They can be made to suit any stair or tread opening and are furnished complete with pre-punched and slotted End Plates (65mmX5mm or 83mmX5mm, etc) ready to bolt to the stringers.

The End Plates can also be custom made as per the customer's requirements.

T6 steel stair treads are supplied with 70mmX30mmX3mm abrasive nosings, which are yellow to give high definition in low light.

T6 steel stair treads are usually hot-dip galvanized, except for nosings.

T6 Steel Bar Grating Stair Treads are used in many architectural, commercial, and industrial applications.

Pitch of Bearing bar (mm)

  Cross-bar Pitch
Specification of bearing bar (depth × thickness) mm
32×5 40×5 45×5 50×5 55×5 60×5
30 100 G325/30/100 G405/30/100 G455/30/100 G505/30/100 G555/30/100 G605/30/100
50 G325/30/50 G405/30/50 G455/30/50 G505/30/50 G555/30/50 G605/30/50
40 100 G325/40/100 G405/40/100 G455/40/100 G505/40/100 G555/40/100 G605/40/100
50 G325/40/50 G405/40/50 G455/40/50 G505/40/50 G555/40/50 G605/40/50
60 50 G325/60/50 G405/60/50 G455/60/50 G505/60/50 G555/60/50



Bearing bar type

Flat bar

I bar

Serrated bar

Cross bar type

Twisted bar

Round bar

flat bar

Production process


Pressure locked

Surface treatment







Trench cover

Steel stair treads
Suspended ceiling

Barrier fence

4.steel grating standard-- steel platform grating

Steel Grating Standard
Steel Grating Standard

Steel Standard

Galvanizing Standard

China Standard

YB/T 4001.1-2007



USA Standard


ASTM (A36)

ASTM (A123)

U.K. Standard


BS4360 (43A)


Australia Standard




Deutsche Standard




Safe Metal Grate Stair Treads / Industrial Grate Flooring For Construction

  • Safe Metal Grate Stair Treads / Industrial Grate Flooring For Construction
  • Safe Metal Grate Stair Treads / Industrial Grate Flooring For Construction
Product Details:

Heavy duty 30x3 hot dipped galvanized outdoor steel grating stair treads




Steel Grating is made by Carbon or mild steel of certain sizes through the processing of slit cutting, serration-making, press welding, inspecting before galvanization, galvanizing, checking before packing, etc.
Steel grating is designed scientifically and equisitely, is very strong and safe to support floors and walkways. It can be used for ceiling, interior and exterior decoration, platform aisle, ventilation windows, (Wells), advertising plaque and other construction.




1) Bearing bar specification:20*3 to 100*6

2) Bearing bar pitch:12.5, etc,or according customer's requirement.

3) Cross bar pitch:38,50,76,100mm,or according to customer's requirement.

4) Material:mild steel or stainless steel

5) Surface treatment:painting or hot dipped galvanized

Steel stair tread is a kind of open steel plate with its bearing bar & cross bar jointing at intersections either by welding or by locking. It can be manufactured into round, square, rectangle or other shapes. Widely used in stairways of steel structures and steel ladders, this stair tread is significantly easier to install and maintain. We can provide various standard products and are happy to fulfill customized orders.

rating standard China YB/T4001-1998(YB/T4001.1-2007)
Britain BS4592-1:1995
American ANSI/NAAMM(MBG531-93)
Australia AS1657-1992
Galvanized standard China GB/T13912-2002
Britain BS729
American ASTM A123/A123M-97a
Australia AS1650


Load Bearing Flat Bar size Thickness≥3mm, depth ≥19mm
19X3,19X5,20X3, 20X5, 25X3, 25X4, 25X4.5, 25X4.7, 25X5…..40X6, 40X8, 40X10,….90X6….
Pitch of Load bearding flat bars(mm) 12.5,15, 20, 30, 30.6, 32.5, 34, 34.8, 35.3, 40, 60, 80……
Pitch of cross bars(mm) 38.1, 50, 50.8, 70, 75, 80, 100, 101.6, 102……

Professional Metal Grate Stair Treads Size Customized CE Certificate

  • Professional Metal Grate Stair Treads Size Customized CE Certificate
Product Details:

Customized Galvanized Steel Stair Tread With ISO9001 CE Certificate


Grating treads can be made from any grating pattern or profile, and to any dimensions to suit the relevant stairway. In the interest of economy we suggest that the recommended widths and lengths be used wherever possible.


Recommended Stair Tread Widths


Pattern and Load Bar selection

The tables below indicate the maximum width and length for stair treads, depending on the combination of material, pattern and load bar selected. Standard stair treads are available ex-stock from Webforge locations; these standard profiles are complimented by a custom manufacturing service.



Bearing bars at 30mm pitch

95 125 155 185 215 245 275


Bearing bars at 40mm pitch

T3, T4

  125 165   205 245 285
  115 155   195 235 275
Fixing hole centers 45 75 100 150

Note: based on 5mm bearing bars.


Max. Stair Tread Lengths

Bearing bar measure


Steel grating specification

253 25×5 32×5
Bearing bars at 30mm pitch 550 900 1300
Bearing bars at 40mm pitch 450 750 1200

Durable Metal Grate Stair Treads Easy Installation Stainless Steel Grating

  • Durable Metal Grate Stair Treads Easy Installation Stainless Steel Grating
Product Details:

ASTM Q235 SS304 25x3 Stainless Steel Grating Steel Stair Treads


Stair tread is made of steel grating& widely used for different types ofsteel ladders,feature easy installation,strong structure&aeatheic appearance&good water permeability.We can fabricate according customer'size.
Bearing Bar
25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10---100x10mm etc
I bar: 25x5x3, 30x5x3, 32x5x3, 40x5x3 etc
US standard: 1''x3/16'', 1 1/4''x3/16'', 1 1/2''x3/16'', 1''x1/4'', 1 1/4''x1/4'', 1 1/2''x1/4'', 1''x1/8'', 1 1/4''x1/8'', 1 1/2''x1/8'' etc

Bearing Bar Pitch

12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3, 32.5, 34.3, 35, 38.1, 40, 41.25, 60, 80mm etc
US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc.

No Item Description
1 Bearing bar 25x3,25x4,30x3,30x4,30x5,32x5,40x5,50x5,.....75x10mm
2 Bear 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.
3 Cross bar pitch 38,50,76,100,101.6mm
4 Material Q235,A36,SS304
5 Surface treatment Black, hot dipped galvanising, paint
6 Standard China: YB/T 4001.1-2007
UK: BS4592-1987
Australia: AS1657-1985


Components of steel grating

Four types of bearing bar

Product Name
Galvanized steel stair treads
Low carbon steel
CN: Q235, US: A36, UK: 43A
CN: YB/T4001-1998, US: ANSI/NAAMM, UK: BS4592-1987, AUS1657-1988, JJS
CE, GOST, ISO9001, ISO14001, HSE
Bearing bar size
20X3, 25X3, 25X4, 25X5, 30X3, 30X4, 30X5, 32X3, 32X5, 40X5, 50X4... 75X8mm, etc
Bearing bar pitch
Bearing bar type
Plain, Serrated (tooth-like), I bar (I section), Serrated-I
Cross bar size
5X5, 6X6, 8X8mm (twisted bar)/5, 6, 8mm ( round bar)
Cross bar pitch
40, 50, 60, 65, 76, 100, 101.6, 120, 130mm, etc.
Surface treatment
Black, self colour, hot dip galvanized, painted, spray coating
Galvanization Standard
CN: GB/T13912, US: ASTM (A123), UK: BS729
power plants, shipbuilding, large equipment, industrial constructions

Q235 Steel Metal Grate Stair Treads Slip Resistant For Outdoor Ladder

  • Q235 Steel Metal Grate Stair Treads Slip Resistant For Outdoor Ladder
  • Q235 Steel Metal Grate Stair Treads Slip Resistant For Outdoor Ladder
Product Details:

Safety and anti slip outdoor ladder Q235 steel grating stairs tread steps

About our company:

(1).The real CE and ISO factory,give you a good quality and a best price

(2).Many years management ,give you a good service

(3).Our products are well sold in China and abroad


(4).Many years management ,give you a good service


(5).Our products are well sold in China and abroad


Mild carbon steel provides an economical, high strength for uses in most industrial and commercial applications.


Specific application:

Steel grating products are designed and manufactured for various industrial and civil constructions in city road, gardens, yard, airport, railway and industrial engineering, and they offer the following the features:

Grating advantage:

Light weight, great load-bearing capacity, non-slip and safe, easy installation, material-economic, sturdy and durable, ventilated, easy to clean and attractive appearance.

Grating usage:

steel bar grating is mainly used in chemical industry, food processing, hydro processing and other industries as listed :

  • Power plant
  • Chemical plant
  • Oil Refinery
  • Steel plant
  • Machinery plant
  • Paper-making factory
  • Cement plant
  • Civil engineering
  • Wastewater treatment
  • Pharmacy industry
  • Food processing


Bearing bar spacing 30mm

95mm 125 155 185 215 245 275


Bearing bar spacing 40mm

  125 165   205 245 285


Bearing bar spacing 40mm

  115 155   195 235 275
Screw hole pitch(mm) 45 75 100 150

Stair tread max-length:

flat bar size 25×3mm 25×5mm 32×5mm
Bearing bar spacing 30 mm 550mm 900mm 1300mm
Bearing bar spacing 40 mm 450mm 750mm 1200mm
Contact Details

Contact Person: Mr.

Tel: 86-311-67902761-8:00

Fax: 86-311-67902762

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