Is this stair stringer suitable for outdoor use?

Yes, it is suitable for both interior and exterior applications due to its weather-resistant design.

What is the maximum tread width supported?

It is designed to take a maximum tread width of 1200mm for 2.5kPa UDL.

What is the incline angle of the stairs?

The dual stringers have an incline angle of 35 degrees.

High Quality Customized Hot DIP Galvanized Steel Stair Stringer

Name: High Quality Customized Hot DIP Galvanized Steel Stair Stringer
Brand: Qingdao Xinhuiying Steel Co., Ltd.
SKU: 1963168591

Shandong, ChinaQingdao Xinhuiying Steel Co., Ltd.

US$43.00-45.00

100 Pairs

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

20 Years

Warranty

20 Years

Model NO.

4 Treads

Structure

Rhs

Bench

Double Stair

Type

Ordinary Stairs

Material

Metal

Usage

Indoor, Outdoor

Stair Type

Straight Stair

Rhs

100*50*3

Tread

1-17

Surface

Hot DIP Galvanized AS/NZS 4680

Payment

Tt30%+70% Balance

Transport Package

Wood Pallet

Specification

1-17 Treads

Trademark

Xinhuiying Steel

Origin

Qingdao China

HS Code

73089000

Production Capacity

2000 Pair Per Week

Key features

Hot-Dip Galvanized Finish: Hot-dip galvanized to AS/NZS 4680:2006 for maximum corrosion resistance.

Customizable Tread Count: Configurable off the shelf in 1 to 17 treads in a continuous pair.

Robust RHS Construction: Rectangular Hollow Sections up to 5mm thickness for durability.

Ergonomic Design: 35-degree incline with 175mm rise and 250mm going for walking comfort.

Easy Installation: Simple to install via concrete cast-in or optional bolt-down bracket.

High Load Capacity: Designed for 2.5kPa UDL (1200mm width) or 4kPa UDL (1000mm width).

Code Compliant: Complies with National Construction Code, AS1657:2018, and AS1170.1.

Versatile Usage: Suitable for both interior and exterior applications.

Company profile

Quality AssuranceImporters and ExportersFlexible Customization

Qingdao Xinhuiying Steel Co., Ltd.

Shandong, China

Business Type: Manufacturer/FactoryExport Year: 2020-07-06Nearest Port: QINGDAO, TIANJINAverage Response Time: ≤4.71hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, EXW

AI-Powered supplier vetting

SummaryThe supplier operates in mechanical equipment, metal products, structures, machine components, and related manufacturing and sales. It reports broad customization and ODM/OEM capabilities, six production lines, documented finished-product inspection instructions, and 6–10 years of R&D engineer experience. Certifications listed include ISO 9000, ISO 9001, ISO 14000, ISO 14001, and ISO 20000. However, the available service-management evidence is weak: complaint handling and corrective-action procedures reportedly lack written records, and no overseas warehouse, showroom, agent, branch, or offline trade-show experience is reported. Financial and cash-flow records are referenced for 2020–2022, but no substantive financial results are provided. Customer-case evidence is limited to an OEM statement for unnamed well-known brands.

Supplier typeThe stated business scope covers R&D, manufacturing, processing, and sales of mechanical equipment, metal products, metal structures, machine components, and related specialized equipment. This supports classification as a manufacturer and supplier of mechanical and metal products rather than a service-only or trading-only company.

CertificationsThe supplier lists ISO 9000, ISO 9001, ISO 14000, ISO 14001, and ISO 20000 certifications. These stated certifications provide explicit evidence of certified management-system coverage, although the slices do not provide certificate numbers, validity dates, or scope details.

R&D capabilityThe supplier reports new products during the past year, ODM service, R&D capability, and 6–10 years of total R&D engineer experience. It does not have an available SDK, but SDK availability is not sufficient to negate the broader evidence of product-development capability.

Production capacityThe supplier operates six production lines and identifies bending, punching, laser cutting, angle-steel punching, and assembly equipment. It also reports uniformly followed finished-product inspection instructions, a one-month average lead time in both peak and off-season periods, and 30 qualified suppliers, supporting established production capability.

Customization capabilityBoth R&D and design-capability records list customization from samples, customization from designs, full customization, minor customization, and flexible customization. The supplier also reports ODM service, providing explicit evidence of broad customization support.