• Anping Tiantai Metal Products Co., Ltd.
    Andy Simpson
    I'm a long-term partner of this factory. I've been on a field trip.The factory is strong and the grating quality is very good. I cooperated with this grating supplier in 2017.What surprised me was that this factory was very strong,and it was also one of the top local grating factories.
  • Anping Tiantai Metal Products Co., Ltd.
    David Zhang
    My client told me that it was very smooth.The delivery speed is also very fast,I will receive the goods on the 7th day of the order.And the goods is inexpensive and convenient.
  • Anping Tiantai Metal Products Co., Ltd.
    Ajay Parate
    I have placed an oeder at this factory about FRP grating.The service is good and the grating is perfact.I'll come again.

Outdoor Residential Building Steel Stair Treads Grating Metal Welded Galvanized Steps

Place of Origin Hebei
Brand Name Zhuote
Certification ISO9001-2015
Model Number 325/30/100
Minimum Order Quantity 20 piece
Price Can discuss
Packaging Details Steel belt packaging
Delivery Time 10-12 work days
Payment Terms L/C, T/T
Supply Ability 1300 Square meters/day

Contact me for free samples and coupons.

Whatsapp:0086 18588475571

Wechat: 0086 18588475571

Skype: sales10@aixton.com

If you have any concern, we provide 24-hour online help.

Product Details
Material Steel, Galvanized Sheet, Aluminum, Low Carbon Steel Surface Treatment Hot Dipped Galvanized, Eleotro Galvanized, Hot Dipped GI, Painted, Un-treated
Product Name Steel Grating, Steel Stair Tread Weight, Electric Glavanized Steel Stair Tread Grating, Ladder Trends, Hot-dip Galvanized Heavy Duty Steel Grating For Water Well Cover Type Stairs, Plain Bar Grating, Serrated Bar Grating, I Bar Grating, Galvanized Steel Grating Bar Plate Weight
Application Floor, Shipbuilding, Walkway, Industrial Constructions, Power Plants Color Silver, Silver Or As Your Requirement, Any Color, Ect, Black
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welded steel stair treads grating


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Product Description

Outdoor residential building metal stair treads welded Galvanized steps steel grating


Introduction of Steel grating:
There’re three kinds of steel gratings, plain style grating, serrated steel grating and I bar steel grating. They are widely used in steel structure platform, stair tread, sidewalk, drainage and well cover, etc. We are professional factory to design and manufacture standard steel grating and customize according to client's requirements.


Normally,Hot galvanizing will be carried out after end welding process,For the thickness of bearing bars is not less than 5mm,the weight of average Zinc Layer will not be less than 610g/m2.When the thickness of bearing bars is less than 5mm,the weight of average Zinc Layer

Will not be less than 460g/m2. The quality and requirements after hot galvanizing are subject to the standards of GB/T 13912.



To again protection layer through the ways of spraying,brushing and soaking.



Coated zinc thickness of 100um,the anticipated life of products in various circumstances.



The range of PH6 to PH12.5,a stable protective film will be formed on the zinc surface.it has good

anti-corrosive property.


1. The weight of gratings varies after end welded and hot galvanizing process. For normal industrial platform using 30mm pitch bearing bars,the weight will increase 12%;14% for 40mm pitch bearing bars and 16% for 60mm pitch bearing bars.

2. For those gratings processed according to the size supplied by customer,calculation will based on the actual area(including cutout and tap)

3. For those gratings processed according to customer’s drawing,calculation will be based on the

total outside size(including cutout and tap)

4. For unusual size of grating cutouts shall not deduct from the length and width.


(1) Structure: Welding with flat steel and cross/round bars with certain distances.

(2) Features: High strength, light structure, high bearing.

(3) Surface: The hot dipped zinc coating gives the product excellent anti-corrosion.


Common Specification Of Steel Grating
Material Standard

ASTM A36, A1011, A569, Q235, S275JR,Stainless steel 304,

Mild steel & Low carbon steel, etc

Bearing Bar


25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10…..100 x10mm 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.

Twisted Cross Bar Pitch 38.1, 50, 60, 76, 80, 100, 101.6, 120mm, 2'' & 4'' etc
Surface treatment

untreated(black), hot-dipped galvanized ,powder coated,

electroplate, painting or as per customers’ requirement.

Grating Style Plain / Smooth, Serrated /teeth, I bar, serrated I bar

1) LCL(less than one container load): packed with plastic film then on the pallets

2) FCL(full container load): nude packing

3) Other special package :according to customers' requirements.

Payment Term

T/T,L/C, Paypal, Western Union, MoneyGram,


Outdoor Residential Building Steel Stair Treads Grating Metal Welded Galvanized Steps 0Outdoor Residential Building Steel Stair Treads Grating Metal Welded Galvanized Steps 1

Outdoor Residential Building Steel Stair Treads Grating Metal Welded Galvanized Steps 2


1.Are you factory or Middleman?

We are professional manufacturer in fence since 1990, our factory is 30000 square meters located in Hebei,


2.How long can be your products survived?

The products of our factory can be used at least 15 years as standard;But we also

according the demand of clients,

3.Do your factory provide warehousing services?

There is a place of our factory, which is specially used to store goods, after finished of

goods.The customers can storage for free.