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Custom Luxury Indoor Spiral Staircase Steel Structure with Timber Steps for Grand Duplex Interior Space

Name: Custom Luxury Indoor Spiral Staircase Steel Structure with Timber Steps for Grand Duplex Interior Space
Brand: Double Building Materials Co., Ltd.
SKU: 1986221461

Guangdong, ChinaDouble Building Materials Co., Ltd.

US$2,890.00

1-9 Sets

US$1,789.00

10-19 Sets

US$998.00

20+ Sets

Product specifications

Spiral Staircase

Product profile

Customization

Available

After-sales Service

Yes

Warranty

Yes

Structure

Beam+Balustrade+Tread

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

Key features

Full Customization: Customizable beam, tread, and railing materials and dimensions to fit specific project needs.

Easy Installation: No welding required; detailed manuals, drawings, and videos provided for self-installation.

3-Year Warranty: 3-year guarantee with free replacement of all fittings within the warranty period.

Global Experience: Completed projects in over 40 countries, ensuring knowledge of local building codes.

Professional Design: Expert design team provides solutions based on your floor plans and dimensions.

One-Stop Solution: Offering comprehensive house solutions and consolidation of goods from other suppliers.

Certified Quality: Products meet local standards with AS/NZS 2208 for Australia and SGCC for America.

Overseas Support: Installation services available; team has previously worked in Thailand and Maldives.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceIn-stock CapacityLow MOQ

Double Building Materials Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 10 years CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤6.75h

AI-Powered supplier vetting

SummaryThe supplier is a limited company with affiliated companies, 18 employees, six production lines, and a broad product range spanning staircases, railings, doors, cabinets, bathroom products, windows, and building materials. It reports substantial stated production capacity, exports 71%–90% of sales, serves multiple international markets, and has seven years of export experience. R&D evidence is positive: new products were developed within the past year and ODM services are available, alongside extensive customization options. Production quality procedures exist, but manufacturing lacks ongoing batch quantity reconciliation. Service procedures, complaint handling, corrective actions, and supplier approval documentation are present without supporting records or complete formalization. The available audit information identifies TÜV Rheinland, but the audit result is recorded as 0 and the report validity ended in 2024; certification status cannot therefore be confirmed. No financial figures are included, and...

Supplier typeThe supplier is identified as a combined company and a limited company, with affiliated companies and a broad multi-category product offering. This supports classification as a diversified manufacturing and trading supplier rather than a narrowly specialized entity.

R&D capabilityThe supplier reports new products within the past year and provides ODM services, indicating active product-development capability. However, it has no available SDK, so the evidence supports product innovation and design manufacturing but not SDK-based development.

Production capacityThe supplier reports six production lines, equipment including saws, drilling, polishing, and veneer-press machinery, and stated annual outputs of 200,000 meters of railing plus 1,500 and 2,000 staircase sets. It also has standardized finished-product inspection instructions and a one-month off-peak lead time, but does not continuously reconcile quantities for each batch or mass production.

Customization capabilityBoth R&D and design-service records list customization from samples, designs, minor customization, flexible customization, and full customization. The consistency across the two slices provides explicit evidence of broad customization capability.