Modern Outdoor Steel Staircase Design Galvanized Spiral Staircase
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Product Highlights
- Hot Galvanized Steel Frame: Durable A3 steel tubes with hot galvanizing finish for long-lasting strength.
- Extensive Material Customization: Customize beams, balustrades, and treads using steel, stainless steel, glass, or wood.
- Global Certification Compliance: Certified with ISO9001, CE, and AS/NZS 2208 for glass to meet international standards.
- 5-Year Warranty Coverage: Free replacement of defective products within 5 years of purchase.
- Professional Design Solutions: Expert team provides tailored solutions based on your drawings and building codes.
- Easy Installation Process: Products are designed for easy assembly without welding, with detailed manuals provided.
- On-Site Installation Service: Professional installation teams available for overseas projects upon request.
- One-Stop Logistics Support: We help collect goods from other suppliers and arrange shipment to save time and money.
Product Attributes
- Customization
- Available
- Structure
- Spiral
- Bench
- Multi Stair
- Model NO.
- DB-S4001
- Type
- Ordinary Stairs
- Material
- Stainless Steel
- Usage
- Indoor, Outdoor, Shopping Mart
- Stair Type
- Spiral Stair
- Assemble
- Easy Assemble
- Beam Material
- A3 Steel / Stainless Steel
- Balustrade Material
- Tempered Glass / Stainless Steel
- Step Material
- Steel / Solid Wood/ Laminated Tempered Glass
- Transport Package
- Plywood Package
- Specification
- Customized Based On Jobsite
- Trademark
- Double Building
- Origin
- China
- HS Code
- 7308900000
- Production Capacity
- 800
Product Images of Modern Outdoor Steel Staircase Design Galvanized Spiral Staircase
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Product Description
Similar Spiral Stairs Design Linked According Drawing

Staircase Components
| Item | Materials | Surface |
Specification |
| Beam/Stringer | A3 steel; | power-coat/hot galvanizing |
4-6mm thick steel plate |
| Balustrade | A3 steel;SS304/316 | power-coat/hotgalvanizing/brushed/mirror |
wire/rod + post +handrail |
| tempered glass | clear/frost/crushed/tinted |
10-15mm tempered glass | |
| Tread | solid wood | stain/nature |
acacia,elm,oak,walnut,beech,brich |
| laminated glass | clear/frost/crushed/tinted |
12+1.52+12mm/15+1.52+15mm | |
| Stone | nature |
15-20mm thick; custom thick |
Our Advantage
Professional Solution
We will have a designer team work for your project and offer the professional solution which base on the project drawing you sent, also combine the solution with the building code and the site environment.
Good Quality
Our products with ISO9001 ISO14001 OHS18001 ISO10012 SASO SGCC CE NS/NZS 2208 CSA etc certificate.. We have received good feedback about our product from more than 78 countries.
Strict Quality Control
Railing after finish, our workers will check each part of railing one by one, from the baluster to screw, not only the surface but also dimension.
Staircase after production, we will do the trial-assemble to make sure the dimension and stair run well.
Save Your Energy
Measurement if needs, we would appreciate to offer the measurement service for your apartment or residential project.
Collect the goods if needs, only need to let us know your other goods location, then we will help to arrange the loading.
Arrange shipment if need, we would appreciate to help you arrange the shipment, CIF or DDU both available.
Installation - is needs, we would appreciate to send our installation team to your site and offer the installation for your apartment or residential project.
5 Years Warranty
If our product's problem, we will free replace the according product to client within 5 years.

FAQ
Q: What information we should offer to quote?
A:If you have layout or house plan drawing please send us,if not please let me know the dimension of the floor to floor height and dimension of the stairwell.
Q: Have you made some project in our local?Do you know our building code and local standard?
A: We have finished house project in exceed 89 country so we well know the building code & standard.
Q: Does your products have any certification?
A: If your project in Australia we promise all of our glass should have AS/NZS 2208 mark. If your project local in America, our products will have CE certification.
Q: If we buy building materials from you,is it hard to install by ourslef?
A: All of our poducts easy to install and no need weld,we 100% sure you can install it without any problem.
Q: Do you have any installation guide/drawing for us?
A: We will send you detail installation manual and drawing,if you still not understand we can show you the installation video.
Q:Can you guys come to our jobsite do the installation?
A: Sure,We can offer installation serivce and we have went to Thailand, Maldives to do installation last year.
Q: Is any guarrantee i can get from you?
A: Our products will have 3 years guarrantee, all fitting can be changed for free within 3 years.
Q: Can you offer other products for our house?
A: Yes,We are pleased to offer one stop solution for your house.you just send us your house plan,we will check if any otherthing we can offer.
Q: If i have other products in China, Can you help me collect the goods to one container?
A: No problem, we will help you collect all of your goods from your other supplier and arrange shipment for you,it will saving time and money for you.You handle over everything to us.
About the Supplier
This supplier has been audited by BV. Verify the report on the official BV website with ID "MIC-ASR262145". Items marked "" are certified.
Company Profile
Double Building Materials Co., Ltd was found on 2000 years. It's own a hardware factory which focus on the staircase, railing item design and manufacturer we also take a share in a Cabinet factory and window & door factory, So we can supply various types of products such as staircase, balustrade, window & door, kitchen cabinet and bathroom cabinet etc.
With 19 years in the industry we offer valuable experience both in commercial and residential project, We can handle small and large projects. As a professional supplier for building materials, We supply one stop service for your house project, We mainly work with house builder, Property developer, contractor, design & architect company, in recent years we also offer service for some house owner, we have worked with over than 40 country and finish a lot of famous project, Our project get well feedback from our customer, they are from USA, Australia, Fiji, Cayman Island, Thailand, Iceland, Haiti, Mauritius, Saudi Arabia, Norway, UK and some Africa countries.
Are you still suffering how to choose a nice supplier for your project? We sure It will be a huge work to communicate with many difference supplier since you need buy wide range products for your project, now you find us, everything will become easy, Your just send our your house plan and let us know your demand, Our D&B company can work all of these products for you, We have a special team to follow up difference products, they are very professional guy, once get your drawing/requirement, our design team will assist them finish further work. Saving money & saving your project time, Why not have a try?
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- 201 Room, Building B, No.9 Yangmei Road,Bantian Street,Long Gang District, Shenzhen City,China
-
Plant Area
- 3723.78 square meters
-
Number of Employees
- 55
-
Registered Capital
- 500,000 RMB
-
Terms of Payment
- LC, T/T, D/P, PayPal, Western Union, Small-amount payment
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: one month -
Nearest Port
- Shenzhen Port
-
Minimum Order Quantity
- 1 set
-
Supply Chain Partners
- 15
Our Production Capability & Technical Expertise
-
Main Products
- Staircase, Railing, Kitchen Cabinet, Aluminum Window, Bathroom Products, Vanity, Waredrobe, Railing Hardware, Building Materials, Wooden Door
-
Production Lines
- 6
-
Production Machines
- Cutting Machine, Drilling Machine, Hydraulic Pressing Machine, Sanding Machine, Sheet Metal Rolling Machine, Welding Machine, Wooden Production Machine, Wooden Cutting Machine
-
QA/QC inspectors
- 2 people
-
Inspection Type for Finished Products
- 100% inspection(Visual inspection & Function inspection)
-
Inspection Method for Finished Products
- Have instructions and uniformly followed
-
Customization Options
- Customization from Samples, Customization from Designs, Full Customization, Minor Customization, Flexible customization
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 4 people
-
Traceability of Raw Materials
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2016-08-10
-
Export Year
- 10 years
-
Main Markets
- North America, Europe, East Asia(Japan/ South Korea), Australia
-
Repeat Buyers Choice
- 50%~80%
-
Number of Foreign Trading Staff
- 10
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- Yes
Our Certifications, Standards & Industry Recognition
-
Cooperated with Fortune 500
- No
FAQ
- What information is needed to get a quote?
- Please send layout or house plan drawings. If unavailable, provide the floor-to-floor height and stairwell dimensions.
- Do you know local building codes and standards?
- Yes, we have completed projects in over 89 countries and are familiar with local building codes and standards.
- What certifications do your products have?
- Products for Australia have AS/NZS 2208 marks for glass, and products for America have CE certification.
- Is it difficult to install the staircase by ourselves?
- No, all products are easy to install without welding. We provide detailed manuals and drawings to ensure success.
- Can you provide installation guides or videos?
- Yes, we send detailed installation manuals and drawings. If needed, we can also provide installation videos.
- Do you offer on-site installation services?
- Yes, we can send our installation team to your jobsite. We have previously installed projects in Thailand and the Maldives.
- What guarantee is provided with the product?
- We offer a 3-year guarantee where all fittings can be changed for free within this period.
- Can you help collect goods from other suppliers?
- Yes, we can collect goods from your other suppliers in China and arrange shipment in one container to save time and money.
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